Click chemistry enables preclinical evaluation of targeted epigenetic therapies

Author:

Tyler Dean S.12,Vappiani Johanna3ORCID,Cañeque Tatiana456ORCID,Lam Enid Y. N.12ORCID,Ward Aoife3ORCID,Gilan Omer12,Chan Yih-Chih1ORCID,Hienzsch Antje456ORCID,Rutkowska Anna3ORCID,Werner Thilo3ORCID,Wagner Anne J.3ORCID,Lugo Dave7ORCID,Gregory Richard7ORCID,Ramirez Molina Cesar7ORCID,Garton Neil7ORCID,Wellaway Christopher R.7ORCID,Jackson Susan1ORCID,MacPherson Laura12,Figueiredo Margarida1ORCID,Stolzenburg Sabine1ORCID,Bell Charles C.12ORCID,House Colin1ORCID,Dawson Sarah-Jane128ORCID,Hawkins Edwin D.9,Drewes Gerard3,Prinjha Rab K.7ORCID,Rodriguez Raphaël456,Grandi Paola3ORCID,Dawson Mark A.12810ORCID

Affiliation:

1. Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.

2. Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.

3. Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany.

4. Chemical Cell Biology Group, Institut Curie, Paris Sciences et Lettres Research University, 26 Rue d’Ulm, 75248 Paris Cedex 05, France.

5. CNRS UMR3666, 75005 Paris, France.

6. INSERM U1143, 75005 Paris, France.

7. Epigenetics Discovery Performance Unit, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK.

8. Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia.

9. The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.

10. Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.

Abstract

Are better drugs just a click away? Drugs that show promise in preclinical models often fail in the clinic, in part because of limited information on drug localization within cells and across tissues. In a proof-of-concept study, Tyler et al. applied click chemistry methods to study the localization of bromodomain inhibitors. These are cancer drugs that alter chromatin structure and gene expression. Clickable derivatives of the drugs localized within chromatin and showed that the drugs exhibit distinct modes of binding at responsive and unresponsive genes. In a mouse leukemia model, the click-probes revealed that the drugs accumulate to different extents in the spleen and bone marrow, which are two tissue sources of leukemic cells. Science , this issue p. 1397

Funder

National Health and Medical Research Council of Australia

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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