Mechanically Triggered Hybridization Chain Reaction.

Autor: Duan Y; Department of Chemistry, Emory University, Atlanta, GA, 30322, USA., Glazier R; Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30322, USA., Bazrafshan A; Department of Chemistry, Emory University, Atlanta, GA, 30322, USA., Hu Y; Department of Chemistry, Emory University, Atlanta, GA, 30322, USA., Rashid SA; Department of Chemistry, Emory University, Atlanta, GA, 30322, USA., Petrich BG; Department of Pediatrics, Emory University, Atlanta, GA, 30322, USA., Ke Y; Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30322, USA., Salaita K; Department of Chemistry, Emory University, Atlanta, GA, 30322, USA.; Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30322, USA.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2021 Sep 01; Vol. 60 (36), pp. 19974-19981. Date of Electronic Publication: 2021 Jul 29.
DOI: 10.1002/anie.202107660
Abstrakt: Cells transmit piconewton forces to receptors to mediate processes such as migration and immune recognition. A major challenge in quantifying such forces is the sparsity of cell mechanical events. Accordingly, molecular tension is typically quantified with high resolution fluorescence microscopy, which hinders widespread adoption and application. Here, we report a mechanically triggered hybridization chain reaction (mechano-HCR) that allows chemical amplification of mechanical events. The amplification is triggered when a cell receptor mechanically denatures a duplex revealing a cryptic initiator to activate the HCR reaction in situ. Importantly, mechano-HCR enables direct readout of pN forces using a plate reader. We leverage this capability and measured mechano-IC 50 for aspirin, Y-27632, and eptifibatide. Given that cell mechanical phenotypes are of clinical importance, mechano-HCR may offer a convenient route for drug discovery, personalized medicine, and disease diagnosis.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
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