Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective

Increased understanding of cancer biology, pharmacology and drug delivery has provided a new framework for drug discovery and product development that relies on the unique expression of specific macromolecules (i.e., antigens) on the surface of tumour cells. This has enabled the development of anti-...

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Main Authors: David Dahlgren, Hans Lennernäs
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/25/12/2861
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author David Dahlgren
Hans Lennernäs
author_facet David Dahlgren
Hans Lennernäs
author_sort David Dahlgren
collection DOAJ
description Increased understanding of cancer biology, pharmacology and drug delivery has provided a new framework for drug discovery and product development that relies on the unique expression of specific macromolecules (i.e., antigens) on the surface of tumour cells. This has enabled the development of anti-cancer treatments that combine the selectivity of antibodies with the efficacy of highly potent chemotherapeutic small molecules, called antibody-drug conjugates (ADCs). ADCs are composed of a cytotoxic drug covalently linked to an antibody which then selectively binds to a highly expressed antigen on a cancer cell; the conjugate is then internalized by the cell where it releases the potent cytotoxic drug and efficiently kills the tumour cell. There are, however, many challenges in the development of ADCs, mainly around optimizing the therapeutic/safety benefits. These challenges are discussed in this review; they include issues with the plasma stability and half-life of the ADC, its transport from blood into and distribution throughout the tumour compartment, cancer cell antigen expression and the ADC binding affinity to the target antigen, the cell internalization process, cleaving of the cytotoxic drug from the ADC, and the cytotoxic effect of the drug on the target cells. Finally, we present a summary of some of the experimental ADC strategies used in the treatment of hepatocellular carcinoma, from the recent literature.
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spelling doaj.art-6ab175bc4b4a449dba046528ccd447562023-11-20T04:30:47ZengMDPI AGMolecules1420-30492020-06-012512286110.3390/molecules25122861Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery PerspectiveDavid Dahlgren0Hans Lennernäs1Department of Pharmacy, Division of Biopharmaceutics, Uppsala University, 752 36 Uppsala, SwedenDepartment of Pharmacy, Division of Biopharmaceutics, Uppsala University, 752 36 Uppsala, SwedenIncreased understanding of cancer biology, pharmacology and drug delivery has provided a new framework for drug discovery and product development that relies on the unique expression of specific macromolecules (i.e., antigens) on the surface of tumour cells. This has enabled the development of anti-cancer treatments that combine the selectivity of antibodies with the efficacy of highly potent chemotherapeutic small molecules, called antibody-drug conjugates (ADCs). ADCs are composed of a cytotoxic drug covalently linked to an antibody which then selectively binds to a highly expressed antigen on a cancer cell; the conjugate is then internalized by the cell where it releases the potent cytotoxic drug and efficiently kills the tumour cell. There are, however, many challenges in the development of ADCs, mainly around optimizing the therapeutic/safety benefits. These challenges are discussed in this review; they include issues with the plasma stability and half-life of the ADC, its transport from blood into and distribution throughout the tumour compartment, cancer cell antigen expression and the ADC binding affinity to the target antigen, the cell internalization process, cleaving of the cytotoxic drug from the ADC, and the cytotoxic effect of the drug on the target cells. Finally, we present a summary of some of the experimental ADC strategies used in the treatment of hepatocellular carcinoma, from the recent literature.https://www.mdpi.com/1420-3049/25/12/2861antibody-drug conjugateshepatocellular carcinomaliver cancerdrug discoverymonoclonal antibodiesbioconjugation
spellingShingle David Dahlgren
Hans Lennernäs
Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective
Molecules
antibody-drug conjugates
hepatocellular carcinoma
liver cancer
drug discovery
monoclonal antibodies
bioconjugation
title Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective
title_full Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective
title_fullStr Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective
title_full_unstemmed Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective
title_short Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective
title_sort antibody drug conjugates and targeted treatment strategies for hepatocellular carcinoma a drug delivery perspective
topic antibody-drug conjugates
hepatocellular carcinoma
liver cancer
drug discovery
monoclonal antibodies
bioconjugation
url https://www.mdpi.com/1420-3049/25/12/2861
work_keys_str_mv AT daviddahlgren antibodydrugconjugatesandtargetedtreatmentstrategiesforhepatocellularcarcinomaadrugdeliveryperspective
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