ArticleJournal of the American Chemical Society2026
Targeting Adaptive and Innate Immune Responses with Covalent Aptamers.
Article in Journal of the American Chemical Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
Covalent aptamers have recently found initial success as tools for fast and selective transfer of labels to target proteins. Here, aptamers targeting protein tyrosine kinase 7 (PTK7) and the mesenchymal-epithelial transition factor (cMet) were functionalized with electrophiles capable of covalently transferring small-molecule immune recruiters. Capitalizing on biotin transfer, aptamers were utilized to trigger activation of universal anti-biotin chimeric antigen receptor (CAR) T cells resulting in selective lysis of PTK7- and cMet-positive cells. Additionally, a cleavable electrophile of 2,4-dinitrophenyl (DNP) hapten transfer was synthesized and utilized for the selective modification of cell surface PTK7 and cMet. The DNP modification elicited the selective activation of complement-dependent cytotoxicity (CDC). These results demonstrate the potential of covalent aptamers as immune-activating and cancer-cell-killing agents.
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