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Meier JC, Tallant C, Fedorov O, Witwicka H, Hwang SY, van Stiphout RG, Lambert JP, Rogers C, Yapp C, Gerstenberger BS, Fedele V, Savitsky P, Heidenreich D, Daniels DL, Owen DR, Fish PV, Igoe NM, Bayle ED, Haendler B, Oppermann UC, Buffa F, Brennan PE, Müller S, Gingras AC, Odgren PR, Birnbaum MJ, Knapp S. Selective Targeting of Bromodomains of the Bromodomain-PHD Fingers Family Impairs Osteoclast Differentiation. ACS Chem Biol 2017; 12:2619-2630. [PMID: 28849908 PMCID: PMC5662925 DOI: 10.1021/acschembio.7b00481] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/29/2017] [Indexed: 01/16/2023]
Abstract
Histone acetyltransferases of the MYST family are recruited to chromatin by BRPF scaffolding proteins. We explored functional consequences and the therapeutic potential of inhibitors targeting acetyl-lysine dependent protein interaction domains (bromodomains) present in BRPF1-3 in bone maintenance. We report three potent and selective inhibitors: one (PFI-4) with high selectivity for the BRPF1B isoform and two pan-BRPF bromodomain inhibitors (OF-1, NI-57). The developed inhibitors displaced BRPF bromodomains from chromatin and did not inhibit cell growth and proliferation. Intriguingly, the inhibitors impaired RANKL-induced differentiation of primary murine bone marrow cells and human primary monocytes into bone resorbing osteoclasts by specifically repressing transcriptional programs required for osteoclastogenesis. The data suggest a key role of BRPF in regulating gene expression during osteoclastogenesis, and the excellent druggability of these bromodomains may lead to new treatment strategies for patients suffering from bone loss or osteolytic malignant bone lesions.
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Affiliation(s)
- Julia C. Meier
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - Cynthia Tallant
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - Oleg Fedorov
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - Hanna Witwicka
- Department of Cell and Developmental Biology, University of Massachusetts Medical School, Worcester, Massachusetts, United States
| | - Sung-Yong Hwang
- Department of Cell and Developmental Biology, University of Massachusetts Medical School, Worcester, Massachusetts, United States
| | - Ruud G. van Stiphout
- Department of Oncology, Oxford University, Old Road Campus Research Building, Oxford OX3 7DQ, United Kingdom
| | - Jean-Philippe Lambert
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada
| | - Catherine Rogers
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - Clarence Yapp
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - Brian S. Gerstenberger
- Pfizer Worldwide Medicinal
Chemistry, 610 Main Street, Cambridge, Massachusetts 02139, United States
| | - Vita Fedele
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - Pavel Savitsky
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - David Heidenreich
- Goethe-University Frankfurt, Institute of Pharmaceutical Chemistry, Riedberg Campus, 60438 Frankfurt am Main, Germany
| | | | - Dafydd R. Owen
- Pfizer Worldwide Medicinal
Chemistry, 610 Main Street, Cambridge, Massachusetts 02139, United States
| | - Paul V. Fish
- Department
of Pharmaceutical & Biological Chemistry, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, United
Kingdom
| | - Niall M. Igoe
- Department
of Pharmaceutical & Biological Chemistry, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, United
Kingdom
| | - Elliott D. Bayle
- Department
of Pharmaceutical & Biological Chemistry, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, United
Kingdom
| | - Bernard Haendler
- Drug Discovery, Bayer Pharma
AG, Müllerstrasse
178, D-13353 Berlin, Germany
| | | | - Francesca Buffa
- Department of Oncology, Oxford University, Old Road Campus Research Building, Oxford OX3 7DQ, United Kingdom
| | - Paul E. Brennan
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
| | - Susanne Müller
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
- Buchmann Institute for Life Sciences (BMLS), Riedberg Campus, 60438 Frankfurt am Main, Germany
| | - Anne Claude Gingras
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Paul R. Odgren
- Department of Cell and Developmental Biology, University of Massachusetts Medical School, Worcester, Massachusetts, United States
| | - Mark J. Birnbaum
- Department of Biology, Merrimack College, North Andover, Massachusetts, United States
| | - Stefan Knapp
- Target Discovery
Institute and Structural Genomics Consortium, Oxford University, Oxford, United Kingom
- Buchmann Institute for Life Sciences (BMLS), Riedberg Campus, 60438 Frankfurt am Main, Germany
- Goethe-University Frankfurt, Institute of Pharmaceutical Chemistry, Riedberg Campus, 60438 Frankfurt am Main, Germany
- German Cancer Network (DKTK), Frankfurt site, 60438 Frankfurt am Main, Germany
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