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Site-selective installation of BASHY fluorescent dyes to Annexin V for targeted detection of apoptotic cells

Published version
Peer-reviewed

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Authors

Cal, PMSD 
Sieglitz, F 
Santos, FMF 
Parente Carvalho, C 
Guerreiro, A 

Abstract

Fluorophores are indispensable for imaging biological processes. We report the design and synthesis of azide-tagged boronic acid salicylidenehydrazone (BASHY) dyes and their use for site-selective labelling of Annexin V. The Annexin V-BASHY conjugate maintained function and fluorescence as demonstrated by the targeted detection of apoptotic cells.

Description

Keywords

Annexin A5, Apoptosis, Boronic Acids, Fluorescent Dyes, HeLa Cells, Humans, Hydrazones, Microscopy, Confocal, Models, Molecular, Molecular Conformation

Journal Title

Chemical Communications

Conference Name

Journal ISSN

1359-7345
1364-548X

Volume Title

53

Publisher

Royal Society of Chemistry
Sponsorship
Engineering and Physical Sciences Research Council (EP/M003647/1)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (675007)
European Research Council (676832)
European Commission (EC) (852985)
We thank FCT Portugal (Doctoral Fellowship, SFRH/BD/94779/2013 to F. M. F. S., Postdoctoral Fellowship, SFRH/BPD/103172/2014 to P. M. S. D. C.; projects PTDC/QUI-QUI/118315/2010 and PTDC/BBB BQB/0506/2012; PTDC/QEQ-QOR/1434/2014: PTDC/SAUFAR/119389/2010; FCT Investigator to G. J. L. B. and P. M. P. G.; iMed.ULisboa grant UID/DTP/04138/2013), EU (Marie-Curie CIG to G. J. L. B.; Marie-Sklodowska Curie ITN ProteinConjugates to G. J. L. B. and P. M. P. G.), DFG (SI 2117/1-1 to F. S.), CNPq Brazil (fellowship 200456/2015-6 to J. B. B.); Ministerio de Economía y Competitividad, Madrid, Spain (grant CTQ2014-54729-C2-1-P), Junta de Andalucía (grant P12-FQM-2140) and the EPSRC (G. J. L. B.) for financial support. G. J. L. B. is a Royal Society University Research Fellow and the recipient of a European Research Council Starting Grant (TagIt).