Evidence map›Paper›PMID 17532042›Full record

ArticleCell calcium2008

T-type Ca2+ channel expression in human esophageal carcinomas: a functional role in proliferation.

Fengmin Lu, Hairu Chen, Chun Zhou, Shuang Liu, Mingzhou Guo, Pingping Chen, Hui Zhuang, Dong Xie, Songwei Wu

Open access · greenAbstract read
In one paragraph

Article in Cell calcium, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

35 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Blockade of CaBritish journal of pharmacology · 2024
    Article
  5. Review
  6. Article
  7. Article
  8. Targeting Ion Channels for Cancer Treatment: Current Progress and Future Challenges.Reviews of physiology, biochemistry and pharmacology · 2022
    Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. αAmerican journal of physiology. Cell physiology · 2019
    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

9 authors at 4 institutions in 2 countries.

Fengmin LuDepartment of Microbiology, Peking University Health Science Center, Beijing 100083, China.
Hairu Chen
Chun Zhou
Shuang Liu
Mingzhou Guo
Pingping Chen
Hui Zhuang
Dong Xie
Songwei Wu
University of South Alabama · USPeking University · CNShanghai Institutes for Biological Sciences · CNSidney Kimmel Comprehensive Cancer Center · US

Funding

Lung Endothelium in Vaso-OcclusionR01HL074116 · NHLBI · UNIVERSITY OF SOUTH ALABAMA · PI WU, SONGWEI · 2004 to 2006
$760k
NHLBI NIH HHS HL74116NHLBI NIH HHS R01 HL074116
6 · The paper itself

Abstract

In the present study the role of T-type Ca(2+) channels in cancer cell proliferation was examined. Seventeen human esophageal cancer cell lines were screened for T-type channels using RT-PCR and voltage-clamp recordings. mRNAs for all three T-type channel alpha(1)-subunits (alpha(1G), alpha(1H), and alpha(1I)) were detected in all 17 cell lines: either alpha(1H) alone, alpha(1H) and alpha(1G), or all three T-type alpha(1)-subunits. Eleven cell lines were further subjected to voltage-clamp recordings: one, i.e. the TE8 cell line, was found to exhibit a typical T-type current while others exhibited a minimal or no T-type current. Cell proliferation assays were performed in the presence or absence of T-type channel blocker mibefradil in KYSE150, KYSE180 and TE1 cells expressing mRNA for T-type channel alpha(1)-subunits but lacking T-type current, and TE8 cells exhibiting T-type current. Only TE8 cell proliferation was reduced by mibefradil. Silencing the alpha(1G)-gene that encodes functional T-type Ca(2+) channels in TE8 cells with type-specific shRNA transduction also significantly decreased TE8 cell proliferation. The reduction of cell proliferation in TE8 cells was found to be associated with an up-regulation of p21(CIP1). Moreover, p53 silencing nearly abolished the up-regulation of p21(CIP1) resulting from mibefradil T-type channel blockade. Together, these findings suggest a functional role of T-type channels in certain esophageal carcinomas, and that inhibition of T-type channels reduces cell proliferation via a p53-dependent p21(CIP1) pathway.

Indexed as

Calcium Channel BlockersCalcium Channels, T-TypeCarcinomaCell Line, TumorCell ProliferationCyclin-Dependent Kinase Inhibitor p21Esophageal NeoplasmsGene ExpressionHumansProtein SubunitsRNA InterferenceTumor Suppressor Protein p53Calcium Channel BlockersCalcium Channels, T-TypeCDKN1A protein, humanCyclin-Dependent Kinase Inhibitor p21Protein SubunitsTumor Suppressor Protein p53

Identifiers

PMID17532042
PMCPMC2692709
OpenAlexW1997504132

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.