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    • 4. 发明申请
    • Methods and compositions for modulating C5-a-mediated inflammatory responses
    • 调节C5-a介导的炎症反应的方法和组合物
    • US20060063701A1
    • 2006-03-23
    • US11202449
    • 2005-08-11
    • Hidechika OkadaNoriko Okada
    • Hidechika OkadaNoriko Okada
    • A61K38/10C07K7/08
    • C07K7/08A61K38/00C07K14/472
    • PL37 (RAARISLGPRICKAFTE [SEQ ID NO: 2]) is an Antisense Homolgoy Box peptide composed of amino acids 37 to 53 of C5a-anaphylatoxin. Complementary peptides, ASGAPAPGPAGPLRPMF (Pep-A [SEQ ID NO: 1]) and ASTAPARAGLPRLPKFF (Pep-B [SEQ ID NO: 3]) were designed and characterized. Pep-A bound to PL37 and to C5a with very slow dissociation, whereas Pep-B failed to bind at all. C5a was inactivated by 7 nM or more of Pep-A and this concentration of Pep-A inhibited induction of intracellular Ca++ influx in neutrophils. Patch clamp studies also showed the effectiveness of Pep-A in C5a-receptor-expressing neuroblastoma cells. Pep-A administration prevented rats from C5a-mediated rapid lethal shock. A-Pep-A (Pep-A acetylated with alanine at the amino-terminus) was more stable in vivo and showed stronger inhibition of inflammatory reactions in mice and rats. Chemical modification of Pep-A (e.g., acetylation, or single or multiple amino acid replacement, insertion, or deletion within the native Pep-A sequence) will yield effective inhibitors, and will often improve inhibitory function on C5a anaphylatoxin. In such modified constructs it will often be desired to conserve some or all 5 prolines found in Pep-A to preserve inhibitory function on C5a.
    • PL37(RAARISL​​GPRICKAFTE [SEQ ID NO:2])是由C5a-过敏毒素的氨基酸37至53组成的反义同源盒肽。 设计并表征互补肽ASGAPAPGPAGPLRPMF(Pep-A [SEQ ID NO:1])和ASTAPARAGLPRLPKFF(Pep-B [SEQ ID NO:3])。 Pep-A与PL37和C5a结合非常缓慢的解离,而Pep-B根本无法结合。 C5a被7nM或更多的Pep-A灭活,并且该浓度的Pep-A抑制嗜中性粒细胞内细胞内Ca ++流入的诱导。 补体钳研究还显示Pep-A在表达C5a受体的神经母细胞瘤细胞中的有效性。 Pep-A治疗阻止大鼠C5a介导的快速致死性休克。 A-Pep-A(在氨基末端用丙氨酸乙酰化的Pep-A)在体内更稳定,并且在小鼠和大鼠中表现出更强的炎症反应抑制。 Pep-A的化学修饰(例如,乙酰化,或天然Pep-A序列内的单个或多个氨基酸置换,插入或缺失)将产生有效的抑制剂,并且将经常改善对C5a过敏毒素的抑制功能。 在这种修饰的构建体中,通常需要保存Pep-A中发现的一些或全部5个脯氨酸以保持对C5a的抑制功能。
    • 10. 发明授权
    • Human IgM antibody lysing activated lymphocytes under mediation by homologous complement
    • 人IgM抗体通过同源补体在调解下溶解活化的淋巴细胞
    • US07914790B2
    • 2011-03-29
    • US10520016
    • 2003-06-30
    • Hidechika OkadaNoriko Okada
    • Hidechika OkadaNoriko Okada
    • A61K39/395C12N5/07
    • C07K16/28A61K2039/505C07K2317/21C07K2317/56Y10S530/809
    • A human IgM monoclonal antibody responding to HIV-infected cells too, which is characterized by lysing activated human lymphocytes, etc. under the mediation by a homologous human complement, is obtained. Using the thus obtained monoclonal antibody, it is intended to provide an immune reaction controlling remedy, etc. containing the human IgM monoclonal antibody which responds specifically to activated lymphocytes and induces cell lysis under the mediation by a homologous complement. Using the human IgM monoclonal antibody responding to activated human lymphocytes, it is also intended to provide an HIV remedy, etc. characterized by lysing and eliminating activated lymphocytes to thereby treat transplantation rejection and autoimmune diseases caused by an over-response of T lymphocytes as well as HIV infection.
    • 获得了响应于HIV感染细胞的人IgM单克隆抗体,其特征在于通过同源人补体在介导下裂解活化的人淋巴细胞等。 使用如此获得的单克隆抗体,旨在提供含有人IgM单克隆抗体的免疫反应控制药物,其特异性响应于活化的淋巴细胞,并在同源补体的介导下诱导细胞裂解。 使用对活化的人淋巴细胞作出反应的人IgM单克隆抗体,还旨在提供HIV疗法等,其特征在于裂解和消除活化的淋巴细胞,从而治疗由T淋巴细胞过度反应引起的移植排斥反应和自身免疫性疾病 作为艾滋病毒感染。