Abstract: Methods and compositions related to the selective, specific disruption of multiple ligand-receptor signaling interactions, such as ligand-receptor interactions implicated in disease, are disclosed. These interactions may involve multiple cytokines in a single receptor family or multiple ligand receptor interactions from at least two distinct ligand-receptor families. The compositions may comprise polypeptides having composite sequences that comprise sequence fragments of two or more ligand binding sites. The methods and compositions may involve sequence fragments of two or more ligand binding sites that are arranged to conserve the secondary structure of each of the ligands from which the sequence fragments were taken.

Abstract: Methods and compositions related to the selective, specific disruption of multiple ligand-receptor signaling interactions, such as ligand-receptor interactions implicated in disease, are disclosed. These interactions may involve multiple cytokines in a single receptor family or multiple ligand receptor interactions from at least two distinct ligand-receptor families. The compositions may comprise polypeptides having composite sequences that comprise sequence fragments of two or more ligand binding sites. The methods and compositions may involve sequence fragments of two or more ligand binding sites that are arranged to conserve the secondary structure of each of the ligands from which the sequence fragments were taken.

Abstract: Embodiments relate to peptide antagonists of ?c-family cytokines, which is associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Traditional approaches to inhibiting yc-cytokine activity involve raising neutralizing antibodies against each individual ?c-cytokine family member/? receptor subunit. However, success has been limited and often multiple ?c-cytokine family members co-operate to cause the disease state. Combinatorial use of neutralizing antibodies raised against each factor is impractical and poses an increased risk of adverse immune reactions. The present embodiments overcome these shortcomings by utilizing peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity.

Abstract: Methods and compositions related to the selective, specific disruption of multiple ligand-receptor signaling interactions, such as ligand-receptor interactions implicated in disease, are disclosed. These interactions may involve multiple cytokines in a single receptor family or multiple ligand receptor interactions from at least two distinct ligand-receptor families. The compositions may comprise polypeptides having composite sequences that comprise sequence fragments of two or more ligand binding sites. The methods and compositions may involve sequence fragments of two or more ligand binding sites that are arranged to conserve the secondary structure of each of the ligands from which the sequence fragments were taken.

Abstract: Methods and compositions related to the selective, specific disruption of multiple ligand-receptor signaling interactions, such as ligand-receptor interactions implicated in disease, are disclosed. These interactions may involve multiple cytokines in a single receptor family or multiple ligand receptor interactions from at least two distinct ligand-receptor families. The compositions may comprise polypeptides having composite sequences that comprise sequence fragments of two or more ligand binding sites. The methods and compositions may involve sequence fragments of two or more ligand binding sites that are arranged to conserve the secondary structure of each of the ligands from which the sequence fragments were taken.

Abstract: The ?c-family cytokines, Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-7 (IL-7), Interleukin-9 (IL-9), Interleukin-15 (IL-15), and Interleukin-21 (IL-21), are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Peptide and/or peptide derivative antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity are described. Also described are peptide and/or peptide derivative antagonists exhibiting Simul-Block activity, and inhibiting the activity of multiple ?c-cytokine family members.

Abstract: Embodiments relate to peptide antagonists of ?c-family cytokines, which is associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Traditional approaches to inhibiting ?c-cytokine activity involve raising neutralizing antibodies against each individual ?c-cytokine family member/receptor subunit. However, success has been limited and often multiple ?c-cytokine family members co-operate to cause the disease state. Combinatorial use of neutralizing antibodies raised against each factor is impractical and poses an increased risk of adverse immune reactions. The present embodiments overcome these shortcomings by utilizing peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity.

Abstract: Peptide antagonists of ?c-family cytokines, which is associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Traditional approaches to inhibiting ?c-cytokine activity involve raising neutralizing antibodies against each individual ?c-cytokine family member/receptor subunit. However, success has been limited and often multiple ?c-cytokine family members co-operate to cause the disease state. Combinatorial use of neutralizing antibodies raised against each factor is impractical and poses an increased risk of adverse immune reactions. The present embodiments overcome these shortcomings by utilizing peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity. Such approach allows for flexibility in antagonist design.

Abstract: Methods and compositions related to the selective, specific disruption of multiple ligand-receptor signaling interactions, such as ligand-receptor interactions implicated in disease, are disclosed. These interactions may involve multiple cytokines in a single receptor family or multiple ligand receptor interactions from at least two distinct ligand-receptor families. The compositions may comprise polypeptides having composite sequences that comprise sequence fragments of two or more ligand binding sites. The methods and compositions may involve sequence fragments of two or more ligand binding sites that are arranged to conserve the secondary structure of each of the ligands from which the sequence fragments were taken.

Abstract: Methods and compositions related to the selective, specific disruption of multiple ligand-receptor signaling interactions, such as ligand-receptor interactions implicated in disease, are disclosed. These interactions may involve multiple cytokines in a single receptor family or multiple ligand receptor interactions from at least two distinct ligand-receptor families. The compositions may comprise polypeptides having composite sequences that comprise sequence fragments of two or more ligand binding sites. The methods and compositions may involve sequence fragments of two or more ligand binding sites that are arranged to conserve the secondary structure of each of the ligands from which the sequence fragments were taken.

Abstract: The ?c-family cytokines, Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-7 (IL-7), Interleukin-9 (IL-9), Interleukin-15 (IL-15), and Interleukin-21 (IL-21), are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity are described. Also described are peptide antagonists exhibiting Simul-Block activity, and inhibiting the activity of multiple ?c-cytokine family members.

Abstract: Peptide antagonists of ?c-family cytokines, Interleukin (IL)-2, IL-4, IL-7, IL-9, IL-15, and IL-21 are described. The ?c-cytokines are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic, cosmetic agents and research tools. Traditional approaches to inhibiting ?c-cytokine activity involve raising neutralizing antibodies against each individual ?c-cytokine family member/receptor subunit. However, success has been limited and often multiple ?c-cytokine family members co-operate to cause the disease state. Combinatorial use of neutralizing antibodies raised against each factor is impractical and poses an increased risk of adverse immune reactions. To overcome these shortcomings, use of peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity is provided.

Abstract: The ?c-family cytokines, Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-7 (IL-7), Interleukin-9 (IL-9), Interleukin-15 (IL-15), and Interleukin-21 (IL-21), are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity are described. In several embodiments, peptide antagonists simultaneously inhibit the activity of multiple ?c-cytokine family members.

Abstract: The various embodiments relate to peptide antagonists of ?c-family cytokines, Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-7 (IL-7), Interleukin-9 (IL-9), Interleukin-15 (IL-15), and Interleukin-21 (IL-21). The ?c-cytokines are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Traditional approaches to inhibiting ?c-cytokine activity involve raising neutralizing antibodies against each individual ?c-cytokine family member/receptor subunit. However, success has been limited and often multiple ?c-cytokine family members co-operate to cause the disease state. Combinatorial use of neutralizing antibodies raised against each factor is impractical and poses an increased risk of adverse immune reactions.

Abstract: The ?c-family cytokines, Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-7 (IL-7), Interleukin-9 (IL-9), Interleukin-15 (IL-15), and Interleukin-21 (IL-21), are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. The present embodiments relate to the design of peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity. In several embodiments, peptide antagonists exhibit Simul-Block activity, inhibiting the activity of multiple ?c-cytokine family members.

Abstract: The ?c-family cytokines, Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-7 (IL-7), Interleukin-9 (IL-9), Interleukin-15 (IL-15), and Interleukin-21 (IL-21), are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. The present embodiments relate to the design of peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity. In several embodiments, peptide antagonists exhibit Simul-Block activity, inhibiting the activity of multiple ?c-cytokine family members.

Abstract: The ?c-family cytokines, Interleukin-2 (IL-2), Interleukin-4 (IL-4), Interleukin-7 (IL-7), Interleukin-9 (IL-9), Interleukin-15 (IL-15), and Interleukin-21 (IL-21), are associated with important human diseases, such as leukemia, autoimmune diseases, collagen diseases, diabetes mellitus, skin diseases, degenerative neuronal diseases and graft-versus-host disease (GvHD). Thus, inhibitors of ?c-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. The present embodiments relate to the design of peptide antagonists based on the consensus ?c-subunit binding site to inhibit ?c-cytokine activity. In several embodiments, peptide antagonists exhibit Simul-Block activity, inhibiting the activity of multiple ?c-cytokine family members.