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    • 2. 发明授权
    • Diagnostic test for replicative senescence in T cells
    • T细胞复制衰老的诊断试验
    • US5744317A
    • 1998-04-28
    • US755291
    • 1996-11-22
    • Rita B. Effros
    • Rita B. Effros
    • G01N33/53C07K16/28G01N33/533G01N33/569G01N33/577C07K16/00G01N33/555G01N33/567
    • G01N33/56972C07K16/28C07K16/2809C07K16/2818Y10S435/81Y10S435/974Y10S436/811
    • A method for distinguishing replicatively senescent T cells from replicatively non-senescent T cells in a cell population comprises the steps of: (1) providing a cell population of peripheral blood mononuclear cells; (2) reacting the cell population with a first monoclonal antibody specific for CD3 antigens which is present on all T cells, the antibody being labeled with a first detectable label, so that the monoclonal antibody binds to all T cells in the cell population; (3) simultaneously reacting the cell population with a second monoclonal antibody specific for CD28 antigen, the antibody being labeled with a second detectable label distinguishable from the first detectable label, so that the second monoclonal antibody binds to T cells positive for CD28; and (4) in the cell population of peripheral blood mononuclear cells, detecting the T cells that simultaneously react with the first monoclonal antibody and the second monoclonal antibody by observing the first detectable label bound to the cells simultaneously with the second detectable label bound to the cells, thereby distinguishing replicatively senescent T cells, which are CD28-negative, from replicatively non-senescent T cells, which are CD28-positive, and determining any of: (a) the number of replicatively senescent T cells in the cell population; (b) the number of replicatively non-senescent T cells in the cell population; or (c) the proportion of replicatively senescent T cells to replicatively non-senescent T cells in the cell population. The method can also be used to separate and isolate cells showing immunological senescence from non-senescent cells.
    • 在细胞群体中区分复制性衰老T细胞与复制性非衰老T细胞的方法包括以下步骤:(1)提供外周血单核细胞的细胞群; (2)使细胞群与存在于所有T细胞上的CD3抗原特异性的第一单克隆抗体反应,所述抗体用第一可检测标记标记,使得所述单克隆抗体结合细胞群体中的所有T细胞; (3)同时使细胞群与CD28抗原特异性的第二单克隆抗体反应,所述抗体用可区别于第一可检测标记的第二可检测标记进行标记,使得第二单克隆抗体结合CD28阳性的T细胞; 和(4)在外周血单核细胞的细胞群体中,检测与第一单克隆抗体和第二单克隆抗体同时反应的T细胞,通过观察与结合至细胞的第二可检测标记物同时结合到细胞的第一可检测标记物 细胞,从而区别复制性衰老T细胞,其是CD28阴性的复制性非衰老T细胞,其是CD28阳性的,并且确定以下任何一种:(a)细胞群体中复制衰老T细胞的数量; (b)细胞群中复制非衰老T细胞的数量; 或(c)细胞群中复制性衰老T细胞与复制性非衰老T细胞的比例。 该方法还可用于分离和分离显示来自非衰老细胞的免疫衰老的细胞。
    • 7. 发明授权
    • Peptide mixtures
    • 肽混合物
    • US5266684A
    • 1993-11-30
    • US525899
    • 1990-05-18
    • William J. RutterDaniel V. Santi
    • William J. RutterDaniel V. Santi
    • A61K38/02C07K1/04C07K1/14C07K1/36C07K5/00C07K7/00G01N33/68C07K1/08
    • C07K1/047C07K1/36G01N33/68
    • A method to obtain selected individual peptides or families thereof which have a target property and optionally to determine the amino acid sequence of a selected peptide or peptides to permit synthesis in practical quantities is disclosed. In general outline, the method of the invention comprises synthesizing a mixture of randomly or deliberately generated peptides using standard synthesis techniques, but adjusting the individual concentrations of the components of a mixture of sequentially added amino acids according to the coupling constants for each amino acid/amino acid coupling. The subgroup of peptides having the target property can then be selected, and either each peptide isolated and sequenced, or analysis performed on the mixture to permit its composition to be reproduced. Also included in the invention is an efficient method to determine the relevant coupling constants.
    • 公开了获得具有目标特性并任选地确定所选择的肽或肽的氨基酸序列以允许实际合成的所选单独肽或其家族的方法。 总的来说,本发明的方法包括使用标准合成技术合成随机或故意产生的肽的混合物,但是根据每个氨基酸/偶联物的偶联常数调节相继添加的氨基酸的混合物的组分的个体浓度, 氨基酸偶联。 然后可以选择具有靶特性的肽亚组,并且分离和测序每个肽,或对混合物进行分析以允许其复制其组成。 本发明还包括确定相关耦合常数的有效方法。