Fully human HER2/cluster of differentiation 3 bispecific antibody triggers potent and specific cytotoxicity of T lymphocytes against breast cancer
نویسندگان
چکیده
The use of a bispecific antibody (BsAb) is a promising and highly specific approach to cancer therapy. In the present study, a fully human recombinant single chain variable fragment BsAb against human epidermal growth factor receptor (HER)2 and cluster of differentiation (CD)3 was constructed with the aim of developing an effective treatment for breast cancer. HER2/CD3 BsAb was expressed in Chinese hamster ovary cells and purified via nickel column chromatography. Flow cytometry revealed that the HER2/CD3 BsAb was able to specifically bind to HER2 and CD3‑positive cells. HER2/CD3 BsAb was able to stimulate T-cell activation and induce the lysis of cultured SKBR‑3 and BT474 cells in the presence of unstimulated T lymphocytes. HER2/CD3 BsAb efficiently inhibited the growth of breast cancer tissue by activating and inducing the proliferation of tumor tissue infiltrating lymphocytes. Therefore, HER2/CD3 BsAb is a potent tool which may be a suitable candidate for the treatment of breast cancer.
منابع مشابه
مقایسه عملکرد چهار سلول T مهندسیشده با رسپتور کایمریک حاوی نانوبادی ضد HER2 در مواجهه با سلولهای سرطانی سینه
Background and Objective: Harnessing immune system and its powerful arm, T lymphocytes, against tumor cells are yielding promising results in cancer immunotherapy. Using two arms of immune system in the designing of engineered T cells expressing chimeric receptors with anti-HER2 nanobody (camelid single domain antibody) seems to be an effective strategy in the targeted cancer therapy. ...
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