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Cited by 655

The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.

Copper-free click chemistry in living animals

Open access
Chang, Pamela V., Prescher, Jennifer A., Sletten, Ellen M., Baskin, Jeremy M., Miller, Isaac A., Agard, Nicholas J., Lo, Anderson, Bertozzi, Carolyn R.·2010·Proceedings of the National Academy of Sciences

Abstract

Chemical reactions that enable selective biomolecule labeling in living organisms offer a means to probe biological processes in vivo. Very few reactions possess the requisite bioorthogonality, and, among these, only the Staudinger ligation between azides and triarylphosphines has been employed for direct covalent modification of biomolecules with probes in the mouse, an important model organism for studies of human disease. Here we explore an alternative bioorthogonal reaction, the 1,3-dipolar cycloaddition of azides and cyclooctynes, also known as “Cu-free click chemistry,” for labeling biomolecules in live mice. Mice were administered peracetylated N -azidoacetylmannosamine (Ac 4 ManNAz) to metabolically label cell-surface sialic acids with azides. After subsequent injection with cyclooctyne reagents, glycoconjugate labeling was observed on isolated splenocytes and in a variety of tissues including the intestines, heart, and liver, with no apparent toxicity. The cyclooctynes tested displayed various labeling efficiencies that likely reflect the combined influence of intrinsic reactivity and bioavailability. These studies establish Cu-free click chemistry as a bioorthogonal reaction that can be executed in the physiologically relevant context of a mouse.

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Metadata

Authors
Chang, P. V., Prescher, J. A., Sletten, E. M., Baskin, J. M., Miller, I. A., Agard, N. J., Lo, A., & Bertozzi, C. R.
Venue
Proceedings of the National Academy of Sciences
Published
2010-01-14
Volume
107
Issue
5
Pages
1821-1826
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1989368359
Cited by
655
References
35
FWCI
28.10
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Copper-free click chemistry in living animals. https://app.cochat.ai/papers/10.1073/pnas.0911116107
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Chang, P. V., Prescher, J. A., Sletten, E. M., Baskin, J. M., Miller, I. A., Agard, N. J., Lo, A., & Bertozzi, C. R. (2010). Copper-free click chemistry in living animals. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0911116107

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