Therapeutic agents of colivelin for neurodegenerative diseases
View Patent ↗The present invention relates to a pharmaceutical composition for the treatment and/or prevention of a neurodegenerative disease, comprising the following polypeptide shown in any of (a) to (c): (a) a polypeptide comprising the amino acid sequence represented by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1); (b) a polypeptide comprising an amino acid sequence having a deletion, substitution, insertion, and/or addition of one or several amino acids in the amino acid sequence consisting of Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1), and having an activity that inhibits neuronal cell death associated with neurodegenerative disease; and (c) a modified polypeptide from the polypeptide (a) or (b), or a pharmaceutically acceptable salt thereof, as an effective ingredient.
1. A pharmaceutical composition for neuroprotection from neuronal cell death in a neurodegenerative disease selected from amyotrophic lateral sclerosis (ALS) or Alzheimer's disease, comprising: (a) an isolated polypeptide comprising the amino acid sequence as defined by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1); or (b) a pharmaceutically acceptable salt of the polypeptide of (a).
2. The pharmaceutical composition according to claim 1 , wherein the isolated polypeptide is a dimer.
3. An isolated polypeptide comprising the amino acid sequence as defined by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1), or a salt thereof.
4. The isolated polypeptide according to claim 3 , wherein the polypeptide is a dimer.
5. The pharmaceutical composition according to claim 1 , comprising approximately 100 fM or a higher concentration of the polypeptide (a).
6. The pharmaceutical composition according to claim 1 , comprising the isolated polypeptide consisting of the amino acid sequence as defined by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1).
7. The isolated polypeptide according to claim 3 , wherein the isolated polypeptide consists of the amino acid sequence as defined by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1).