Evidence map›Paper›PMID 25207655›Full record

ArticleJournal of the American Chemical Society2014

Synthesis of seco-B-ring bryostatin analogue WN-1 via C-C bond-forming hydrogenation: critical contribution of the B-ring in determining bryostatin-like and phorbol 12-myristate 13-acetate-like properties.

Ian P Andrews, John M Ketcham, Peter M Blumberg, Noemi Kedei, Nancy E Lewin, Megan L Peach, Michael J Krische

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

14 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Synthesis and Biological Evaluation of Fluorescent Bryostatin Analogues.Chembiochem : a European journal of chemical biology · 2018
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. 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

7 authors at 4 institutions in 1 country.

Ian P AndrewsDepartment of Chemistry and Biochemistry, University of Texas at Austin , Austin, Texas 78712, United States.
John M Ketcham
Peter M Blumberg
Noemi Kedei
Nancy E Lewin
Megan L Peach
Michael J Krische
The University of Texas at Austin · USNational Institutes of Health · USDepartment of Health and Human Services · USFrederick National Laboratory for Cancer Research · US

Funding

Molecular Mechanism of Action of Phorbol EsterZIABC005270 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI BLUMBERG, PETER · 2009 to 2018
$18.4M
Polyketides via Redox-Triggered Alcohol C-H Functionalization.R01GM093905 · NIGMS · UNIVERSITY OF TEXAS AT AUSTIN · PI KRISCHE, MICHAEL J · 2011 to 2024
$4.5M
MOLECULAR MECHANISM OF ACTION OF PHORBOL ESTER TUMOR PROMOTERSZ01BC005270 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI BLUMBERG, PETER · 1996 to 2008
$4.3M
CCR NIH HHS HHSN261200800001CIntramural NIH HHS Z01 BC005270NCI NIH HHS HHSN261200800001ENCI NIH HHS Z1A BC 005270NIGMS NIH HHS R01 GM093905NIGMS NIH HHS R01-GM093905
6 · The paper itself

Abstract

The seco-B-ring bryostatin analogue, macrodiolide WN-1, was prepared in 17 steps (longest linear sequence) and 30 total steps with three bonds formed via hydrogen-mediated C-C coupling. This synthetic route features a palladium-catalyzed alkoxycarbonylation of a C2-symmetric diol to form the C9-deoxygenated bryostatin A-ring. WN-1 binds to PKCα (Ki = 16.1 nM) and inhibits the growth of multiple leukemia cell lines. Although structural features of the WN-1 A-ring and C-ring are shared by analogues that display bryostatin-like behavior, WN-1 displays PMA-like behavior in U937 cell attachment and proliferation assays, as well as in K562 and MV-4-11 proliferation assays. Molecular modeling studies suggest the pattern of internal hydrogen bonds evident in bryostatin 1 is preserved in WN-1, and that upon docking WN-1 into the crystal structure of the C1b domain of PKCδ, the binding mode of bryostatin 1 is reproduced. The collective data emphasize the critical contribution of the B-ring to the function of the upper portion of the molecule in conferring a bryostatin-like pattern of biological activity.

Indexed as

AnimalsAntineoplastic AgentsBryostatinsBryozoaCell Line, TumorCell ProliferationHumansHydrogenationLeukemiaModels, MolecularProtein Kinase C-alphaTetradecanoylphorbol AcetateU937 CellsAntineoplastic Agentsbryostatin 1BryostatinsProtein Kinase C-alphaTetradecanoylphorbol Acetate

Identifiers

PMID25207655
PMCPMC4183601
OpenAlexW2330018097

What OpenQuestion holds

Textmetadata
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.