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    • 1. 发明申请
    • Method for Identifying Lineage-Related Antibodies
    • 鉴定谱系相关抗体的方法
    • US20130130932A1
    • 2013-05-23
    • US13748507
    • 2013-01-23
    • Epitomics, Inc.
    • GUO-LIANG YU
    • G01N33/68
    • G01N33/577C07K16/00C07K16/2863C07K2317/10C07K2317/56C07K2317/76C12Q1/6876G01N33/566G01N33/6854
    • In certain embodiments, the method may comprise: a) obtaining the antibody sequences from a population of B cells; b) grouping the antibody sequences to provide a plurality of groups of lineage-related antibodies; c) testing a single antibody from each of the groups in a bioassay and, after the first antibody has been identified, d) testing further antibodies that are in the same group as the first antibody in a second bioassay. In another embodiment, the method may comprise: a) testing a plurality of antibodies obtained from a first portion of an antibody producing organ of an animal; b) obtaining the sequence of a first identified antibody; c) obtaining from a second portion of said antibody producing organ the sequences of further antibodies that are related by lineage to said first antibody; and, c) testing the further antibodies in a second bioassay.
    • 在某些实施方案中,该方法可以包括:a)从B细胞群获得抗体序列; b)将抗体序列分组以提供多组谱系相关抗体; c)在生物测定中测试来自每个组的单一抗体,并且在鉴定了第一抗体后,d)在第二生物测定中测试与第一抗体在同一组中的另外的抗体。 在另一个实施方案中,该方法可以包括:a)测试从动物的产生抗体的器官的第一部分获得的多个抗体; b)获得第一鉴定抗体的序列; c)从所述抗体产生器官的第二部分获得与所述第一抗体谱系相关的其它抗体的序列; 和c)在第二生物测定中测试另外的抗体。
    • 8. 发明授权
    • Methods for antibody engineering
    • 抗体工程方法
    • US07462697B2
    • 2008-12-09
    • US10984473
    • 2004-11-08
    • Fernando Jose Rebelo Do CoutoKristin B. HendricksS. Ellen WallaceGuo-Liang Yu
    • Fernando Jose Rebelo Do CoutoKristin B. HendricksS. Ellen WallaceGuo-Liang Yu
    • C12P21/08A61K39/00G01N33/53
    • G01N33/577C07K16/241C07K16/467
    • The invention provides a method for identifying positions of an antibody that can be modified without significantly reducing the binding activity of the antibody. In many embodiments, the method involves identifying a substitutable position in a parent antibody by comparing its amino acid sequence to the amino acid sequences of a number of related antibodies that each bind to the same antigen as the parent antibody. The amino acid at the substitutable position may be substituted for a different amino acid without significantly affecting the activity of the antibody. The subject methods may be employed to change the amino acid sequence of a CDR without significantly reducing the affinity of the antibody of the antibody, in humanization methods, or in other antibody engineering methods. The invention finds use in a variety of therapeutic, diagnostic and research applications.
    • 本发明提供了鉴定抗体的位置的方法,该方法可以在不显着降低抗体结合活性的情况下进行修饰。 在许多实施方案中,该方法包括通过将其氨基酸序列与多个与亲本抗体相同的抗原结合的多种相关抗体的氨基酸序列进行比较来鉴定亲本抗体中的可取代位置。 可取代位置的氨基酸可以代替不同的氨基酸而不显着影响抗体的活性。 可以使用本发明的方法来改变CDR的氨基酸序列,而不显着降低抗体的抗体在人源化方法或其它抗体工程方法中的亲和力。 本发明可用于各种治疗,诊断和研究应用。
    • 10. 发明授权
    • Cell fusion method
    • 细胞融合法
    • US07402409B2
    • 2008-07-22
    • US10350841
    • 2003-01-23
    • Guo-Liang Yu
    • Guo-Liang Yu
    • C12P21/08C12N5/06C12N5/16C07H21/04
    • C12N5/163
    • The invention provides methods for fusing a first cell with a second cell to form a hybrid cell. The methods involve incubating a first parental cell producing a first partner of a fusogenic binding partner pair on its surface with a second parental cell producing a second partner of the fusogenic binding partner pair on its surface. In certain embodiments, the parental cells are incubated with a known fusogen such as polyethylene glycol and the fusogenic binding partner pair increases the rate of cell fusion. In many embodiments, the first cell is an antibody producing cell, the second cell is an immortal cell, and the hybrid cell is a hybridoma cell that produces a monoclonal antibody. Also provided by the invention are methods for producing hybridoma cells, and methods for screening those cells for production of a monoclonal antibody of interest. The invention further provides systems and kits for carrying out the subject methods. The subject methods, systems, and kits find use in a variety of different industrial, medical and research applications.
    • 本发明提供了将第一细胞与第二细胞融合以形成杂交细胞的方法。 所述方法包括孵育第一亲本细胞,其第一亲代细胞在其表面上与第二亲本细胞产生融合结合配偶体对的第一个配偶体,从而产生其表面上融合结合配偶体对的第二个配偶体。 在某些实施方案中,将母体细胞与已知的融合蛋白如聚乙二醇一起孵育,并且融合结合配偶体对增加细胞融合的速率。 在许多实施方案中,第一细胞是产生抗体的细胞,第二细胞是永生细胞,杂交细胞是产生单克隆抗体的杂交瘤细胞。 本发明还提供了用于产生杂交瘤细胞的方法,以及用于筛选用于产生感兴趣的单克隆抗体的细胞的方法。 本发明还提供了用于实施本发明方法的系统和试剂盒。 主题方法,系统和试剂盒可用于各种不同的工业,医学和研究应用。