The recent advances in the field of immuno-oncology have dramatically changed the therapeutic strategy against advanced malignancies. Bispecific antibody-based immunotherapies have gained momentum in preclinical and clinical investigations following the regulatory approval of the T cell-redirecting antibody blinatumomab. In this review, we focus on emerging and novel mechanisms of action of bispecific antibodies interacting with immune cells with at least one of their arms to regulate the activity of the immune system by redirecting and/or reactivating effector cells toward tumor cells. These molecules, here referred to as bispecific immunomodulatory antibodies, have the potential to improve clinical efficacy and safety profile and are envisioned as a second wave of cancer immunotherapies. Currently, there are more than 50 bispecific antibodies under clinical development for a range of indications, with promising signs of therapeutic activity. We also discuss two approaches for secretion, direct gene delivery, and infusion of gene-modified cells, which may become instrumental for the clinical application of next-generation bispecific immunomodulatory antibodies.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9306338 | PMC |
| http://dx.doi.org/10.1158/1078-0432.CCR-20-3770 | DOI Listing |
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