Kobayashi K, Ohye T, Pastan I, Nagatsu T
Institute for Comprehensive Medical Science, School of Medicine, Fujita Health University, Aichi, Japan.
Nucleic Acids Res. 1996 Sep 15;24(18):3653-5. doi: 10.1093/nar/24.18.3653.
Immunotoxoin-mediated cell targeting (IMCT) is a technique for conditionally ablating specific cell types based on the cytotoxic activity of a recombinant immunotoxin anti-Tac (Fv)-PE40. To examine the feasibility of this technique for the negative selection in mouse embryonic stem (ES) cells, we investigated the responsiveness of cells expressing human interleukin-2 receptor alpha subunit to anti-Tac(Fv)-PE40. The immunotoxin treatment efficiently eliminated only ES cells bearing the receptor as a consequence of the target specificity of anti-Tac(Fv)-PE40, indicating that IMCT can be used as a novel strategy for positive and negative selection to enrich ES cell clones with a targeted mutation.
免疫毒素介导的细胞靶向(IMCT)是一种基于重组免疫毒素抗 Tac(Fv)-PE40 的细胞毒性活性有条件地消融特定细胞类型的技术。为了检验该技术用于小鼠胚胎干细胞(ES 细胞)阴性选择的可行性,我们研究了表达人白细胞介素-2 受体α亚基的细胞对抗 Tac(Fv)-PE40 的反应性。由于抗 Tac(Fv)-PE40 的靶标特异性,免疫毒素处理仅有效地消除了携带该受体的 ES 细胞,这表明 IMCT 可作为一种新的正负选择策略,以富集具有靶向突变的 ES 细胞克隆。