会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Method for differential diagnosis of T cell leukemias using monoclonal
antibodies
    • 使用单克隆抗体鉴别T细胞白血病的方法
    • US4645738A
    • 1987-02-24
    • US537977
    • 1983-09-30
    • Robert W. KnowlesBo DupontKazuyuki NaitoYasuo Morishima
    • Robert W. KnowlesBo DupontKazuyuki NaitoYasuo Morishima
    • C07K16/30G01N33/53G01N33/554G01N33/577
    • C07K16/3061Y10S435/96Y10S436/811Y10S436/813
    • Two monoclonal antibodies (3-3 and 3-40) were produced which identify two new leukemia associated antigens. Both antibodies reacted with most cell lines derived from patients with T lymphoblastic leukemia (T-ALL), but were not detected on suspensions of normal hematopoietic cells, including thymocytes, by cytotoxicity, absorption of indirect immunofluorescence assays. Analysis of fresh leukemic cells indicated that mAb 3-3 only reacted with T-ALL cells, while mAb 3-40 reacted with some non-T non-B ALL cells and a few acute myelocytic leukemia (AML) cells, as well as T-ALL cells. The 3-40 antigen was also found histopathologically in frozen sections of several normal tissues, including the epithelial cells and a few lymphoid cells of the thymus, and some malignant tissues, while the 3-3 antigen was not found in any tissue studied. A "double absorption" assay provided additional serological evidence the the two antibodies identify different antigenic determinants. Biochemical analysis indicated that the molecules immunoprecipitated by mAb 3-3 and mAb 3-40 have molecular weights of 35-40,000 daltons. It is demonstrated that the 3-3 and 3-40 antigens are markers for human T-ALL and can be used along with the normal T lymphocyte antigen, 3A1, to discriminate T-ALL from cutaneous T-cell lymphoma (CTCL), adult T cell leukemia (ATL) and T cell chronic lymphocytic leukemia (T-CLL).
    • 产生两种单克隆抗体(3-3和3-40),其识别两种新的白血病相关抗原。 两种抗体与来自T淋巴细胞白血病患者(T-ALL)的大多数细胞系反应,但在正常造血细胞(包括胸腺细胞)的悬浮液中,通过细胞毒性,间接免疫荧光测定的吸收未检测到。 新鲜白血病细胞的分析表明mAb 3-3仅与T-ALL细胞反应,而mAb 3-40与一些非T非B ALL细胞和少数急性骨髓性白血病(AML)细胞以及T -ALL单元格。 也在组织病理学上发现3-40抗原在几种正常组织的冷冻切片中,包括上皮细胞和胸腺的少数淋巴样细胞和一些恶性组织,而在任何研究的组织中没有发现3-3抗原。 “双重吸收”测定提供了另外的血清学证据,两种抗体鉴定不同的抗原决定簇。 生化分析表明,通过mAb 3-3和mAb 3-40免疫沉淀的分子具有35-40,000道尔顿的分子量。 证明3-3和3-40抗原是人T-ALL的标记物,可以与正常T淋巴细胞抗原3A1一起使用,以区分T-ALL与皮肤T细胞淋巴瘤(CTCL),成人 T细胞白血病(ATL)和T细胞慢性淋巴细胞性白血病(T-CLL)。