Cited by 89Prostate Cancer Treatment and ResearchProtein Degradation and InhibitorsChromatin Remodeling and Cancer

Modulating Androgen Receptor-Driven Transcription in Prostate Cancer with Selective CDK9 Inhibitors

Open access
Richters, André, Doyle, Shelby K., Freeman, David B., Lee, Christina, Leifer, Becky S., Jagannathan, Sajjeev, Kabinger, Florian, Koren, Jošt Vrabič +31 more·2021·Cell Chemical Biology

Abstract

Castration-resistant prostate cancers (CRPCs) lose sensitivity to androgen-deprivation therapies but frequently remain dependent on oncogenic transcription driven by the androgen receptor (AR) and its splice variants. To discover modulators of AR-variant activity, we used a lysate-based small-molecule microarray assay and identified KI-ARv-03 as an AR-variant complex binder that reduces AR-driven transcription and proliferation in prostate cancer cells. We deduced KI-ARv-03 to be a potent, selective inhibitor of CDK9, an important cofactor for AR, MYC, and other oncogenic transcription factors. Further optimization resulted in KB-0742, an orally bioavailable, selective CDK9 inhibitor with potent anti-tumor activity in CRPC models. In 22Rv1 cells, KB-0742 rapidly downregulates nascent transcription, preferentially depleting short half-life transcripts and AR-driven oncogenic programs. In vivo, oral administration of KB-0742 significantly reduced tumor growth in CRPC, supporting CDK9 inhibition as a promising therapeutic strategy to target AR dependence in CRPC.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.chembiol.2020.10.001

Cites

82 of 82 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • CDK9 inhibitor KB-0742 and BRD4 bromodomain 2 inhibitor ABBV-744 have shown high selectivity in transcriptional programs, making them attractive candidates for therapeutic development.

    “CDK9 inhibitor KB-0742 and BRD4 bromodomain 2 (BD2) inhibitor ABBV-744 have shown high selectivity in transcriptional programs, making them attractive candidates for therapeutic development.623,624”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Richters, A., Doyle, S. K., Freeman, D. B., Lee, C., Leifer, B. S., Jagannathan, S., Kabinger, F., Koren, J. V., Struntz, N. B., Urgiles, J., Stagg, R. A., Curtin, B. H., Chatterjee, D., Mathea, S., Mikochik, P. J., Hopkins, T. D., Gao, H., Branch, J. R., Xin, H., Westover, L., Bignan, G. C., Rupnow, B. A., Karlin, K. L., Olson, C. M., Westbrook, T. F., Vacca, J., Wilfong, C. M., Trotter, B. W., Saffran, D. C., Bischofberger, N., Knapp, S., Russo, J. W., Hickson, I., Bischoff, J. R., Gottardis, M. M., Balk, S. P., Lin, C. Y., Pop, M. S., & Koehler, A. N.
Affiliations
  • Broad Institute (US)
  • Cambridge Intellectual Property (United Kingdom) (GB)
  • Baylor College of Medicine (US)
  • Koch Institute for Integrative Cancer Research At MIT (US)
  • Boston University (US)
  • Goethe University Frankfurt (DE)
  • Beth Israel Deaconess Medical Center (US)
  • Cancer Research UK (GB)
Corresponding author
Koehler, Angela N.
Venue
Cell Chemical Biology
Publisher
Elsevier BV
Published
2021-02
Volume
28
Issue
2
Pages
134-147.e14
ISSN
  • 2451-9448 (ISSN-L)
  • 2451-9456
OpenAlex
W3093612331
Cited by
86
References
82
Citations by year
2026: 9 · 2025: 20 · 2024: 14 · 2023: 13 · 2022: 19 · 2021: 11
FWCI
6.61
Type
journal article
Language
en
Open access
Locations
  • Cell chemical biology (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
  • Publication Server of Goethe University Frankfurt am Main (Goethe University Frankfurt) (submittedVersion, cc-by)
  • Newcastle University ePrints (Newcastle Univesity) (cc-by)
Funders
  • Cancer Prevention and Research Institute of Texas (RR150093)
  • Prostate Cancer Foundation (18YOUN24)
  • Congressionally Directed Medical Research Programs (PC170570, W81XWH-17-PCRP-EIRA)
  • Genome Canada
  • Merck KGaA
  • Alexander and Margaret Stewart Trust
  • Broad Institute
  • National Cancer Institute (P50 CA090381, P01 CA163227)
  • Shenzhen Gas Corporation (1097737)
  • U.S. Department of Defense
  • Deutsche Forschungsgemeinschaft (RI 2670/1-1)
  • Ontario Ministry of Economic Development and Innovation
  • Eshelman Institute for Innovation, University of North Carolina at Chapel Hill
  • Canada Foundation for Innovation
  • National Institutes of Health
  • Deutschen Konsortium für Translationale Krebsforschung
  • Wellcome Trust
  • Janssen Pharmaceuticals
  • Ludwig Center at Harvard
  • Meso Scale Diagnostics
  • Pfizer
  • Novartis Pharma
  • National Science Foundation (1122374)
  • Takeda Pharmaceuticals U.S.A.
  • Boehringer Ingelheim
  • Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology
  • Ono Pharma Foundation
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Treatment and Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
Keywords
castration-resistant prostate cancer, androgen receptor splice variants, CDK9 inhibitor, nascent transcription, c-Myc, oral bioavailability, androgen deprivation therapy resistance
MeSH terms
Animals, Male, Mice, Inbred BALB C, Models, Molecular, Receptors, Androgen, Transcription, Genetic, Gene Expression Regulation, Neoplastic, Cyclin-Dependent Kinase 9, Cell Line, Tumor, Protein Kinase Inhibitors, Mice, Androgen Receptor Antagonists, Prostatic Neoplasms, Castration-Resistant

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review