Abstract: The present invention provides a therapeutic agent for epithelial and endothelial injury, and in particular, for epithelial and endothelial microinjury, and the like. The therapeutic agent according to the present invention comprises, for example, a peptide of the following (a), (b), etc., a derivative thereof, or their salt: (a) a peptide comprising the amino acid sequence shown in any one of SEQ ID NOS: 10, 4, 12 and 6; or (b) a peptide comprising the amino acid sequence shown in any one of SEQ ID NOS: 16, 18, 20 and 22.

Abstract: The present invention provides a cell migration regulator capable of promoting or inhibiting cell migration, a method for regulating cell migration, and a pharmaceutical composition comprising such a regulator, etc. The cell migration regulator of the present invention comprises a peptide, a derivative thereof, or a salt of the peptide or the derivative, wherein the peptide comprises the full-length blood coagulation factor IX, a segment derived from the full-length blood coagulation factor IX by removal of the trypsin domain, the light chain of blood coagulation factor IX, or the EGF1 domain of blood coagulation factor IX, or the EGF3 domain of the endothelial cell locus-1 protein.

Abstract: The present invention provides a therapeutic agent for epithelial and endothelial injury, and in particular, for epithelial and endothelial microinjury, and the like. The therapeutic agent according to the present invention comprises, for example, a peptide of the following (a), (b), etc., a derivative thereof, or their salt: (a) a peptide comprising the amino acid sequence shown in any one of SEQ ID NOS: 10, 4, 12 and 6; or (b) a peptide comprising the amino acid sequence shown in any one of SEQ ID NOS: 16, 18, 20 and 22.

Abstract: The present invention provides a cell migration regulator capable of promoting or inhibiting cell migration, a method for regulating cell migration, and a pharmaceutical composition comprising such a regulator, etc. The cell migration regulator of the present invention comprises a peptide, a derivative thereof, or a salt of the peptide or the derivative, wherein the peptide comprises the full-length blood coagulation factor IX, a segment derived from the full-length blood coagulation factor IX by removal of the trypsin domain, the light chain of blood coagulation factor IX, or the EGF1 domain of blood coagulation factor IX, or the EGF3 domain of the endothelial cell locus-1 protein.

Abstract: The present invention provides an apoptosis-inducing agent capable of inducing apoptosis in various cells including tumor cells and other cells in a simple manner, etc. The apoptosis-inducing agent of the present invention comprises a peptide shown in (a) or (b) below, a derivative thereof, or a salt of the peptide or the derivative: (a) a peptide which comprises an amino acid sequence represented by the formula: C—X-D-X—X—X—X—Y—X—C—X—C (SEQ ID NO: 1)(I); or (b) a peptide which comprises an amino acid sequence with deletion, substitution or addition of one or several amino acids in the amino acid sequence represented by formula (I) and which has apoptosis-inducing activity.

Abstract: A method for testing dysgeusia, which is characterized in that it comprises amplifying at least a portion of a gene encoding a taste receptor belonging to the THTR family and a gene encoding a taste receptor belonging to the T2R family collected from a sample derived from the oral cavity; a primer used for the above amplification; and a kit used for the above test.

Abstract: The present invention provides a means for introducing a gene of interest into a host cell with a higher degree of efficiency regardless of the gene transfer method employed and the type of the host cell. The auxiliary reagent for gene transfer of the present invention is characterized in that it comprises a peptide comprising a specific amino acid sequence represented by formula (I), a mutant or derivative thereof, or a salt of the peptide, the mutant or the derivative.

Abstract: The present invention provides the following partial fragment (a) or (b) of developmentally regulated endothelial cell locus-1 (Del-1) protein: (a) a protein consisting of the amino acid sequence as shown in SEQ ID NO: 6, 8, 10, 12, 18 or 24; or (b) a protein which consists of the amino acid sequence as shown in SEQ ID NO: 6, 8, 10, 12, 18 or 24 having deletion, substitution or addition of one or several amino acids, and has deposition activity onto extracellular matrix.

Abstract: A method for testing dysgeusia, which is characterized in that it comprises amplifying at least a portion of a gene encoding a taste receptor belonging to the THTR family and a gene encoding a taste receptor belonging to the T2R family collected from a sample derived from the oral cavity; a primer used for the above amplification; and a kit used for the above test.

Abstract: The present invention provides the following partial fragment (a) or (b) of developmentally regulated endothelial cell locus-I (Del-1) protein: (a) a protein consisting of the amino acid sequence as shown in SEQ ID NO: 6, 8, 10, 12, 18 or 24; or (b) a protein which consists of the amino acid sequence as shown in SEQ ID NO: 6, 8, 10, 12, 18 or 24 having deletion, substitution or addition of one or several amino acids, and has deposition activity onto extracellular matrix.