In vitro and in vivo antitumor effect of a trivalent bispecific antibody targeting ErbB2 and CD16
In vitro and in vivo antitumor effect of a trivalent bispecific antibody targeting ErbB2 and CD16
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靶向 ErbB2 和 CD16 的三价双特异性抗体的体外和体内抗肿瘤作用
DOI:
10.4161/cbt.7.11.6725
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发表时间:
2008-11
影响因子:
3.6
通讯作者:
中科院分区:
文献类型:
--
作者:
In order to optimize the structure of bispecific antibody (BsAb) and minimize its toxicity, we developed a trivalent anti-ErbB2/anti-CD16 BsAb. This BsAb possesses three antigen binding sites, two antigen binding sites in the form of scFvs targeting the tumor cells overexpressing ErbB2 and a monovalent Fab fragment redirecting NK cells. Critical for this BsAb is its capacity to trigger cytotoxicity of the effector cells in vitro and in vivo. In the present study, we demonstrated that the BsAb is capable of binding to ErbB2 extracellular domain on SKBR3 cells and effectively direct the cytotoxic activities of effector cells to SKBR3 cells even at a low concentration. The BsAb was more effective to SKBR3 cells than to MCF-7 cells, indicating that the killing of tumor cells was dependent on the density of ErbB2 molecules on cell surface. Furthermore, the BsAb was more potent than anti-ErbB2 single chain antibody (scFv)-Fc fusion proteins in the cytotoxicity assay and in SKOV3 xenograft animals. Improved efficacy demonstrates that the BsAb may be valuable to be further modified and optimized for the treatment of malignant cells in a minimal residual disease.
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DOI:
10.1200/jco.1995.13.9.2281
发表时间:
1995-09
期刊:
Journal of clinical oncology : official journal of the American Society of Clinical Oncology
影响因子:
--
作者:
F. Valone;P. Kaufman;P. Guyre;L. Lewis;V. Memoli;Y. Deo;R. Graziano;J. Fisher;L. Meyer;M. Mrozek-Orlowski
通讯作者:
F. Valone;P. Kaufman;P. Guyre;L. Lewis;V. Memoli;Y. Deo;R. Graziano;J. Fisher;L. Meyer;M. Mrozek-Orlowski
影响因子:
3.1
作者:
J. R. McCammon
通讯作者:
J. R. McCammon
DOI:
10.1016/0090-1229(85)90049-2
发表时间:
1985-09
期刊:
Clinical immunology and immunopathology
影响因子:
--
作者:
T. Imir;D. L. Gibbs;W. Sibbitt;A. Bankhurst
通讯作者:
T. Imir;D. L. Gibbs;W. Sibbitt;A. Bankhurst
DOI:
10.1007/s002620050264
发表时间:
1996-03
期刊:
Cancer Immunology, Immunotherapy
影响因子:
--
作者:
L. Weiner;R. Alpaugh;A. R. Amoroso;G. Adams;D. Ring;M. W. Barth
通讯作者:
L. Weiner;R. Alpaugh;A. R. Amoroso;G. Adams;D. Ring;M. W. Barth
影响因子:
11.2
作者:
L. Weiner;M. Holmes;G. Adams;F. LaCreta;P. Watts;I. Garcia de Palazzo
通讯作者:
L. Weiner;M. Holmes;G. Adams;F. LaCreta;P. Watts;I. Garcia de Palazzo