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    • 73. 发明申请
    • COMPOSITIONS AND METHODS FOR MODULATING GAMMA-C-CYTOKINE ACTIVITY
    • 用于调节GAMMA-C细胞因子活性的组合物和方法
    • US20140148394A1
    • 2014-05-29
    • US13980305
    • 2012-01-17
    • Yutaka TagayaNazli Azimi
    • Yutaka TagayaNazli Azimi
    • C07K7/08C07K7/06
    • C07K7/08A61K8/64A61K38/00A61K38/10A61K38/20A61K47/642A61K47/643A61Q3/00A61Q7/00A61Q19/00A61Q19/004A61Q19/08C07K7/06C07K14/52C07K14/54
    • The various embodiments relate to peptide antagonists of γc-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 γc-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 γc-cytokine activity are valuable therapeutic and cosmetic agents as well as research tools. Traditional approaches to inhibiting γc-cytokine activity involve raising neutralizing antibodies against each individual γc-cytokine family member/receptor subunit. However, success has been limited and often multiple γc-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 γc-subunit binding site to inhibit γc-cytokine activity. Such approach allows for flexibility in antagonist design. In several embodiments, peptides exhibit Simul-Block activity, inhibiting the activity of multiple γc-cytokine family members.
    • 各种实施方案涉及γc家族细胞因子,白细胞介素-2(IL-2),白细胞介素-4(IL-4),白介素-7(IL-7),白细胞介素-9(IL-9),白细胞介素 -15(IL-15)和白细胞介素-21(IL-21)。 γc-细胞因子与重要的人类疾病如白血病,自身免疫疾病,胶原病,糖尿病,皮肤病,退行性神经元疾病和移植物抗宿主病(GvHD)有关。 因此,γc-细胞因子活性的抑制剂是有价值的治疗和美容剂以及研究工具。 抑制γc-细胞因子活性的传统方法涉及提高针对每个单个γc-细胞因子家族成员/受体亚基的中和抗体。 然而,成功是有限的,并且通常多个γc-细胞因子家族成员合作引起疾病状态。 组合使用针对每个因素产生的中和抗体是不切实际的,并且造成不良免疫反应的风险增加。 本实施例通过利用基于共有γc-亚基结合位点的肽拮抗剂来抑制γc-细胞因子活性来克服这些缺点。 这种方法允许拮抗剂设计的灵活性。 在几个实施方案中,肽表现出Simul-Block活性,抑制多种γc-细胞因子家族成员的活性。