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    • 6. 发明授权
    • Immunosorbant assay for .alpha.-1-antitrypsin, kit employing said assay,
monoclonal antibody to .alpha.-1-antitrypsin, and hybridoma for
producing said monoclonal antibody
    • α-1-抗胰蛋白酶的免疫吸附试验,使用所述测定的试剂盒,α-1-抗胰蛋白酶的单克隆抗体和用于产生所述单克隆抗体的杂交瘤
    • US5114863A
    • 1992-05-19
    • US617402
    • 1990-11-15
    • Candace C. McCombsJoseph P. MichalskiWilliam R. GallaherJames J. Thompson
    • Candace C. McCombsJoseph P. MichalskiWilliam R. GallaherJames J. Thompson
    • C07K16/38G01N33/573
    • G01N33/573C07K16/38Y10S435/97Y10S436/805Y10S436/81
    • A double antibody sandwich immunosorbent assay for detecting alpha-1-antitrypsin (.alpha..sub.1 AT) comprising the steps of: (1) reacting (a) a first-species-of-animal antibody to .alpha..sub.1 AT with (b) a solid substrate; (2) reacting (a) .alpha..sub.1 AT in a sample suspected of containing .alpha..sub.1 AT with (b) the first-species-of animal polyclonal antibody to .alpha..sub.1 AT; (3) reacting (a) a second-species-of-animal antibody to .alpha..sub.1 AT with (b) the .alpha..sub.1 AT in a sample suspected of containing .alpha..sub.1 AT; (4) reacting (a) a labelled antibody comprising a first-species-of-animal antibody to an antibody from a second species of animal with (b) the second-species-of-animal antibody to .alpha..sub.1 AT; and (5) detecting the amount of labelled first-species-of-animal antibody to antibody from the second species of animal that reacted with the second-species-of-animal polyclonal antibody to .alpha..sub.1 AT; provided that the first species of animal and the second species of animal are not the same in a given assay; and provided that steps (1) to (4) can be conducted in any order so as to result in a complex comprising: (i) the substrate complexed to (ii) the first-species-of-animal antibody to .alpha..sub.1 AT complexed to (iii) the .alpha..sub.1 AT complexed to (iv) the second-species-of-animal antibody to .alpha..sub.1 AT complexed to (v) the labelled antibody. The antibodies used in the assay can be polyclonal antibodies or monoclonal antibodies. A kit for detecting .alpha..sub.1 AT comprising reagents for conducting the above described assays. A monoclonal antibody having specific reactivity to .alpha..sub.1 AT, the antibody being further characterized in that it exhibits substantially no cross reactivity with albumin. A hybridoma that produces the above described monoclonal antibody.
    • 用于检测α-1-抗胰蛋白酶(α1AT)的双抗体夹心免疫吸附测定法,包括以下步骤:(1)使(a)第一种动物抗体与α1AT与(b)固体底物反应; (2)将疑似含有α1AT的样品中的(a)α1AT与(b)第一种动物多克隆抗体与α1AT反应; (3)将(a)第二种动物抗体与α1AT与(b)在怀疑含有α1AT的样品中的α1AT反应; (4)使(a)包含第一种动物抗体的标记抗体与来自第二种动物的抗体与(b)第二种动物抗体α1AT反应; 和(5)检测来自与第二种动物多克隆抗体与α1AT反应的动物的第二种动物的抗体的标记的第一种动物抗体的量; 前提是第一种动物和第二种动物在给定的测定中不相同; 并且条件是步骤(1)至(4)可以以任何顺序进行,以便产生复合物,其包含:(i)与(ii)与α1AT复合的第一种动物抗体复合的底物 (iii)与(iv)与(v)标记抗体复合的α1AT的第二种动物抗体复合的α1AT。 测定中使用的抗体可以是多克隆抗体或单克隆抗体。 用于检测α1AT的试剂盒,其包含用于进行上述测定的试剂。 具有与α1AT具有特异性反应性的单克隆抗体,该抗体的进一步特征在于它表现出与白蛋白基本上没有交叉反应性。 产生上述单克隆抗体的杂交瘤。