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The multiverse of CD46 and oncologic interactions
M. Kathryn Liszewski, John P. Atkinson
M. Kathryn Liszewski, John P. Atkinson
Published May 1, 2025
Citation Information: J Clin Invest. 2025;135(9):e188355. https://doi.org/10.1172/JCI188355.
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Review Series

The multiverse of CD46 and oncologic interactions

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Abstract

Initially identified as a regulator of complement activation on host cells, the known roles of CD46 (membrane cofactor protein [MCP]) have expanded. We now know that this ancient molecule is expressed on almost all nucleated cells as a family of four predominant isoforms. It also is involved in human reproduction, modulation of T cell activation and immunoinflammatory effector functions, autophagy, and the newly identified intracellular complement system (complosome). CD46 is also known as a “pathogen” magnet, being a port of entry for at least seven bacteria and five viruses. Moreover, CD46 has recently emerged as a key player in cancer biology. Numerous studies provide evidence of the association among elevated CD46 expression, malignant transformation, and metastasizing potential. These features, along with its roles as pathogen receptor, have made CD46 a target for cancer therapeutics. Thus, modified viral vectors (such as strains of adenovirus and measles virus) targeting CD46 currently are being exploited against a wide range of cancers. Another oncologic treatment utilizes a CD46-targeting human mAb as an antibody-drug conjugate. Herein, we review CD46 and its “multiverse” of cancer interactions.

Authors

M. Kathryn Liszewski, John P. Atkinson

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Clinical trials of CD46-based oncolytic adenovirus therapies

Clinical trials of CD46-based oncolytic adenovirus therapies


Copyright © 2025 American Society for Clinical Investigation
ISSN: 0021-9738 (print), 1558-8238 (online)

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