Cysteine engineered antibodies and conjugates
    41.
    发明申请
    Cysteine engineered antibodies and conjugates 有权
    半胱氨酸改造的抗体和缀合物

    公开(公告)号:US20070092940A1

    公开(公告)日:2007-04-26

    申请号:US11233258

    申请日:2005-09-22

    摘要: Antibodies are engineered by replacing one or more amino acids of a parent antibody with non cross-linked, highly reactive cysteine amino acids. Antibody fragments may also be engineered with one or more cysteine amino acids to form cysteine engineered antibody fragments (ThioFab). Methods of design, preparation, screening, and selection of the cysteine engineered antibodies are provided. Cysteine engineered antibodies (Ab), optionally with an albumin-binding peptide (ABP) sequence, are conjugated with one or more drug moieties (D) through a linker (L) to form cysteine engineered antibody-drug conjugates having Formula I: Ab-(L-D)p  I where p is 1 to 4. Diagnostic and therapeutic uses for cysteine engineered antibody drug compounds and compositions are disclosed.

    摘要翻译: 通过用非交联的高反应性半胱氨酸氨基酸替代亲本抗体的一个或多个氨基酸来设计抗体。 抗体片段也可以用一个或多个半胱氨酸氨基酸进行工程化以形成半胱氨酸改造的抗体片段(ThioFab)。 提供了设计,制备,筛选和选择半胱氨酸改造的抗体的方法。 任选与白蛋白结合肽(ABP)序列的半胱氨酸改造的抗体(Ab)通过接头(L)与一个或多个药物部分(D)缀合以形成具有式I的半胱氨酸改造的抗体 - 药物共轭物: in-line-formula description =“In-line Formulas”end =“lead”?> Ab-(LD)

    I <?in-line-formula description =“In-line Formulas”end =“尾”→其中p为1至4.公开了半胱氨酸改造的抗体药物化合物和组合物的诊断和治疗用途。