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).
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Patent number: 5464774Abstract: 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: GrantFiled: December 31, 1987Date of Patent: November 7, 1995Assignee: The Salk Institute for Biological StudiesInventors: Andrew J. Baird, Frederick S. Esch, Denis Gospodarowicz, Peter Bohlen, Nicholas C. Ling
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Patent number: 5387673Abstract: 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: GrantFiled: April 26, 1993Date of Patent: February 7, 1995Assignee: American Cyanamid CompanyInventors: Andrew P. Seddon, Peter Bohlen
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Patent number: 5371206Abstract: 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: GrantFiled: January 5, 1994Date of Patent: December 6, 1994Assignee: American Cyanamid CompanyInventors: Andrew P. Seddon, Peter Bohlen, Yakov Gluzman
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Patent number: 5310883Abstract: 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: GrantFiled: November 4, 1991Date of Patent: May 10, 1994Assignee: American Cyanamid CompanyInventors: Andrew P. Seddon, Peter Bohlen, Yakov Gluzman
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Patent number: 5302702Abstract: 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: GrantFiled: February 26, 1993Date of Patent: April 12, 1994Assignee: American Cyanamid CompanyInventors: Andrew P. Seddon, Peter Bohlen, Yakov Gluzman
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Patent number: 5270449Abstract: 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: GrantFiled: September 14, 1992Date of Patent: December 14, 1993Assignee: American Cyanamid CompanyInventors: Peter Bohlen, Peter Gautschi-Sova
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Patent number: 5210026Abstract: 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: GrantFiled: February 5, 1991Date of Patent: May 11, 1993Assignee: American Cyanamid CompanyInventors: Imre Kovesdi, Peter Bohlen
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Patent number: 5206354Abstract: 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: GrantFiled: November 23, 1990Date of Patent: April 27, 1993Assignee: American Cyanamid CompanyInventors: Andrew P. Seddon, Peter Bohlen
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Patent number: 5171842Abstract: 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: GrantFiled: November 1, 1991Date of Patent: December 15, 1992Assignee: American Cyanamid CompanyInventors: Peter Bohlen, Peter Gautschi-Sova
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Patent number: 5155214Abstract: 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: GrantFiled: January 8, 1990Date of Patent: October 13, 1992Assignee: The Salk Institute for Biological StudiesInventors: Andrew J. Baird, Frederick S. Esch, Denis Gospodarowicz, Peter Bohlen, Nicholas C. Ling
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Patent number: 4956455Abstract: 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: GrantFiled: June 20, 1985Date of Patent: September 11, 1990Assignee: The Salk Institute for Biological StudiesInventors: Andrew Baird, Frederick S. Esch, Peter Bohlen, Denis Gospodarowicz, Nicholas C. Ling
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Patent number: 4902782Abstract: 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: GrantFiled: November 7, 1988Date of Patent: February 20, 1990Assignee: The Salk Institute for Biological StudiesInventors: Denis Gospodarowicz, Andrew Baird, Peter Bohlen
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Patent number: 4785079Abstract: 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: GrantFiled: December 10, 1986Date of Patent: November 15, 1988Assignee: The Salk Institute for Biological StudiesInventors: Denis Gospodarowicz, Andrew Baird, Peter Bohlen
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Patent number: 4675383Abstract: 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: GrantFiled: November 9, 1984Date of Patent: June 23, 1987Assignee: The Salk Institute for Biological StudiesInventors: Peter Bohlen, Gunther Dennert
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Patent number: 4610976Abstract: 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: GrantFiled: August 29, 1983Date of Patent: September 9, 1986Assignee: The Salk Institute for Biological StudiesInventors: Peter Bohlen, Frederick S. Esch, Nicholas C. Ling, Paul E. Brazeau, Jr., Roger C. L. Guillemin
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Patent number: 4605643Abstract: 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: GrantFiled: March 2, 1984Date of Patent: August 12, 1986Assignee: The Salk Institute for Biological StudiesInventors: Peter Bohlen, Paul E. Brazeau, Frederick S. Esch, Nicholas C. Ling, William B. Wehrenberg
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Patent number: 4585756Abstract: 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: GrantFiled: October 12, 1983Date of Patent: April 29, 1986Assignee: The Salk Institute for Biological StudiesInventors: Paul E. Brazeau, Jr., Peter Bohlen, Frederick S. Esch, Nicholas C. Ling, Roger C. L. Guillemin
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Patent number: 4517181Abstract: 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: GrantFiled: September 15, 1982Date of Patent: May 14, 1985Assignee: The Salk Institute for Biological StudiesInventors: Nicholas C. Ling, Frederick S. Esch, Peter Bohlen, Paul E. Brazeau, Jr., Roger C. L. Guillemin
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Patent number: 4316891Abstract: 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: GrantFiled: June 14, 1980Date of Patent: February 23, 1982Assignee: The Salk Institute for Biological StudiesInventors: Roger C. L. Guillemin, Nicholas C. Ling, Fred S. Esch, Peter Bohlen, Paul E. Brazeau, Jr.