Evidence map›Paper›PMID 29915250›Full record

ArticleNature communications2018

Specific stereochemistry of OP-1074 disrupts estrogen receptor alpha helix 12 and confers pure antiestrogenic activity.

S W Fanning, L Hodges-Gallagher, D C Myles, R Sun, C E Fowler, I N Plant, B D Green, C L Harmon, G L Greene, P J Kushner

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
5.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Targeting Oestrogen Receptor Signalling in Breast Cancer Therapy.Advances in experimental medicine and biology · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. ESR1 activating mutations: From structure to clinical application.Biochimica et biophysica acta. Reviews on cancer · 2023
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

S W FanningBen May Department for Cancer Research, University of Chicago, Chicago, IL, 60637, USA. sfanning@uchicago.edu.
L Hodges-GallagherOlema Pharmaceuticals, San Francisco, CA, 94107, USA. leslie@olemapharma.com.
D C MylesOlema Pharmaceuticals, San Francisco, CA, 94107, USA.
R SunOlema Pharmaceuticals, San Francisco, CA, 94107, USA.
C E FowlerBen May Department for Cancer Research, University of Chicago, Chicago, IL, 60637, USA.
I N PlantDepartment of Systems Biology, Harvard Medical School, Boston, MA, 02115, USA.
B D GreenBen May Department for Cancer Research, University of Chicago, Chicago, IL, 60637, USA.
C L HarmonOlema Pharmaceuticals, San Francisco, CA, 94107, USA.
G L GreeneBen May Department for Cancer Research, University of Chicago, Chicago, IL, 60637, USA.ORCID http://orcid.org/0000-0001-6894-8728
P J KushnerOlema Pharmaceuticals, San Francisco, CA, 94107, USA.
Olema Pharmaceuticals (United States) · USUniversity of Chicago · USHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Complex tissue-specific and cell-specific signaling by the estrogen receptor (ER) frequently leads to the development of resistance to endocrine therapy for breast cancer. Pure ER antagonists, which completely lack tissue-specific agonist activity, hold promise for preventing and treating endocrine resistance, however an absence of structural information hinders the development of novel candidates. Here we synthesize a small panel of benzopyrans with variable side chains to identify pure antiestrogens in a uterotrophic assay. We identify OP-1074 as a pure antiestrogen and a selective ER degrader (PA-SERD) that is efficacious in shrinking tumors in a tamoxifen-resistant xenograft model. Biochemical and crystal structure analyses reveal a structure activity relationship implicating the importance of a stereospecific methyl on the pyrrolidine side chain of OP-1074, particularly on helix 12.

Indexed as

Alkaline PhosphataseAnimalsAntineoplastic AgentsBenzopyransCell ProliferationEstrogen AntagonistsEstrogen Receptor alphaFemaleHumansMammary Neoplasms, ExperimentalMCF-7 CellsMice, Inbred BALB CMice, NudeProtein Conformation, alpha-HelicalPyrrolidinesSelective Estrogen Receptor ModulatorsAlkaline PhosphataseAntineoplastic AgentsBenzopyransEstrogen AntagonistsEstrogen Receptor alphaOP-1074PyrrolidinesSelective Estrogen Receptor Modulators

Identifiers

PMID29915250
PMCPMC6006285
OpenAlexW2808671332

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.