Glucagon-like peptide-2 and its therapeutic use
First Claim
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1. A pharmaceutical composition, comprising a GLP-2, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, which has the formula (SEQ ID NO. 1):
- R1-(Y)m-His-Ala-Asp-Gly-Ser-Phe-Ser-Asp-Glu-Met-Asn-Thr-aa1-Leu-Asp-aa2-Leu-Ala-aa3-aa4-Asp-Phe-Ile-Asn-Trp-Leu-aa5-aa6-Thr-Lys-Ile-Thr-Asp-(X)n-R2wherein;
aa1 is Met, Leu, Ile, Val or Cys;
aa2 is Ala, Ser, Thr, Pro, Gly, Asn, Asp, Glu or Gln;
aa3 is Ala, Ser, Thr, Pro or Gly;
aa4 is His, Arg or Lys;
aa5 is Met, Leu, Ile, Val or Cys;
aa6 is Asn, Asp, Glu, Gln, His, Arg or Lys;
X is one or two amino acids selected from the group consisting of His, Arg and Lys;
Y is one or two amino acids selected from the group consisting of His, Arg and Lys;
m is 0 or 1;
n is 0 or 1;
R1 is H or an N-terminal blocking group; and
R2 is OH or a C-terminal blocking group, and wherein the GLP-2 or salt thereof is not a naturally occurring GLP-2.
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Abstract
Glucagon-like peptide 2, a product of glucagon gene expression, and analogs of glucagon-like peptide 2, have been identified as gastrointestinal tissue growth factors. Their effects on the growth of small bowel and pancreatic islets are described. Their formulation as a pharmaceutical, and their therapeutic use in treating disorders of the bowel, are described.
141 Citations
16 Claims
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1. A pharmaceutical composition, comprising a GLP-2, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, which has the formula (SEQ ID NO. 1):
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R1-(Y)m-His-Ala-Asp-Gly-Ser-Phe-Ser-Asp-Glu-Met-Asn-Thr-aa1-Leu-Asp-aa2-Leu-Ala-aa3-aa4-Asp-Phe-Ile-Asn-Trp-Leu-aa5-aa6-Thr-Lys-Ile-Thr-Asp-(X)n-R2 wherein; aa1 is Met, Leu, Ile, Val or Cys; aa2 is Ala, Ser, Thr, Pro, Gly, Asn, Asp, Glu or Gln; aa3 is Ala, Ser, Thr, Pro or Gly; aa4 is His, Arg or Lys; aa5 is Met, Leu, Ile, Val or Cys; aa6 is Asn, Asp, Glu, Gln, His, Arg or Lys; X is one or two amino acids selected from the group consisting of His, Arg and Lys; Y is one or two amino acids selected from the group consisting of His, Arg and Lys; m is 0 or 1; n is 0 or 1; R1 is H or an N-terminal blocking group; and R2 is OH or a C-terminal blocking group, and wherein the GLP-2 or salt thereof is not a naturally occurring GLP-2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method to identify intestinotrophic peptides, comprising:
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a) obtaining an analog of an intestinotrophic vertebrate GLP-2, the analog having at least one amino acid substitution, deletion, addition, or an amino acid with a blocking group; b) administering to a mammal the analog using a regimen capable of eliciting an intestinotrophic effect when utilized for rat GLP-2; and c) determining the effect of the analog on small bowel weight and/or on the crypt plus villus height and/or pancreatic islet size relative to a mock treated control mammal, whereby the intestinotrophic peptide is identified as an analog which elicits an increase in the weight and/or the height and/or the size.
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Specification