Evidence map›Paper›PMID 12527326›Full record

ArticleBiochemical pharmacology2003

Dihydropyridines as inhibitors of capacitative calcium entry in leukemic HL-60 cells.

Jacquie L Harper, Carol S Camerini-Otero, An Hu Li, Soon Ai Kim, Kenneth A Jacobson, John W Daly

Open access · greenAbstract read
In one paragraph

Article in Biochemical pharmacology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 111 citations in OpenAlex.

  1. A Reappraisal of the Effects of L-type CaFunction (Oxford, England) · 2023
    Pooled it
  2. Article
  3. Article
  4. Metal Ion Signaling in Biomedicine.Chemical reviews · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Targeting calcium signaling in cancer therapy.Acta pharmaceutica Sinica. B · 2017
    Review
  13. Article
  14. Article
  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

6 authors at 2 institutions in 1 country.

Jacquie L HarperLaboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bldg. 8, Rm. 1A17, National Institutes of Health, Bethesda, MD 20892, USA.
Carol S Camerini-Otero
An Hu Li
Soon Ai Kim
Kenneth A Jacobson
John W Daly
National Institute of Diabetes and Digestive and Kidney Diseases · USNational Institutes of Health · US

Funding

Development of Drugs Acting at Ion ChannelsZ01DK031127 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 2007 to 2008
$385k
Intramural NIH HHS Z01 DK031127
6 · The paper itself

Abstract

A series of 1,4-dihydropyridines (DHPs) were investigated as inhibitors of capacitative calcium influx through store-operated calcium (SOC) channels. Such channels activate after ATP-elicited release of inositol trisphosphate (IP(3))-sensitive calcium stores in leukemia HL-60 cells. The most potent DHPs were those containing a 4-phenyl group with an electron-withdrawing substituent, such as m- or p-nitro- or m-trifluoromethyl (IC(50) values: 3-6 microM). Benzyl esters, corresponding to the usual ethyl/methyl esters of the DHPs developed as L-type calcium channel blockers, retained potency at SOC channels, as did N-substituted DHPs. N-Methylation reduced by orders of magnitude the potency at L-type channels resulting in DHPs nearly equipotent at SOC and L-type channels. DHPs with N-ethyl, N-allyl, and N-propargyl groups also had similar potencies at SOC and L-type channels. Replacement of the usual 6-methyl group of DHPs with larger groups, such as cyclobutyl or phenyl, eliminated activity at the SOC channels; such DHPs instead elicited formation of inositol phosphates and release of IP(3)-sensitive calcium stores. Other DHPs also caused a release of calcium stores, but usually at significantly higher concentrations than those required for the inhibition of capacitative calcium influx. Certain DHPs appeared to cause an incomplete blockade of SOC channel-dependent elevations of calcium, suggesting the presence of more than one class of such channels in HL-60 cells. N-Methylnitrendipine (IC(50) 2.6 microM, MRS 1844) and N-propargylnifrendipine (IC(50) 1.7 microM, MRS 1845) represent possible lead compounds for the development of selective SOC channel inhibitors.

Indexed as

CalciumCalcium ChannelsDihydropyridinesHL-60 CellsHumansLeukemiaCalciumCalcium ChannelsDihydropyridines

Identifiers

PMID12527326
PMCPMC4976593
OpenAlexW2073097593

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.