alexa Antibody-drug conjugates: an emerging concept in cancer therapy.


Immunotherapy: Open Access

Author(s): Chari RV, Miller ML, Widdison WC, Chari RV, Miller ML, Widdison WC, Chari RV, Miller ML, Widdison WC, Chari RV, Miller ML, Widdison WC

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Abstract Traditional cancer chemotherapy is often accompanied by systemic toxicity to the patient. Monoclonal antibodies against antigens on cancer cells offer an alternative tumor-selective treatment approach. However, most monoclonal antibodies are not sufficiently potent to be therapeutically active on their own. Antibody-drug conjugates (ADCs) use antibodies to deliver a potent cytotoxic compound selectively to tumor cells, thus improving the therapeutic index of chemotherapeutic agents. The recent approval of two ADCs, brentuximab vedotin and ado-trastuzumab emtansine, for cancer treatment has spurred tremendous research interest in this field. This Review touches upon the early efforts in the field, and describes how the lessons learned from the first-generation ADCs have led to improvements in every aspect of this technology, i.e., the antibody, the cytotoxic compound, and the linker connecting them, leading to the current successes. The design of ADCs currently in clinical development, and results from mechanistic studies and preclinical and clinical evaluation are discussed. Emerging technologies that seek to further advance this exciting area of research are also discussed. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This article was published in Angew Chem Int Ed Engl and referenced in Immunotherapy: Open Access

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