Evidence map›Paper›PMID 20508153›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2010

Suppression of aberrant transient receptor potential cation channel, subfamily V, member 6 expression in hyperproliferative colonic crypts by dietary calcium.

Sara Peleg, Joseph H Sellin, Yu Wang, Michael R Freeman, Shahid Umar

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.4field-weighted citation impact, top 23% 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

25 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. CaInternational journal of molecular sciences · 2022
    Review
  7. Review
  8. Review
  9. Review
  10. TRPV6 as A Target for Cancer Therapy.Journal of Cancer · 2020
    Review
  11. Article
  12. The calcium-cancer signalling nexus.Nature reviews. Cancer · 2017
    Review
  13. TRPV6 is a prognostic marker in early-stage cervical squamous cell carcinoma.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
  14. Article
  15. Article
  16. Article
  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

5 authors at 3 institutions in 1 country.

Sara PelegThe University of Texas, M. D. Anderson Cancer Center, Houston, 77030, USA. speleg@mdanderson.org
Joseph H Sellin
Yu Wang
Michael R Freeman
Shahid Umar
The University of Texas Medical Branch at Galveston · USBoston Children's Hospital · USThe University of Texas MD Anderson Cancer Center · US

Funding

Beta-Catenin/NF-kB in Hyperplasia/Neoplasia of Colonic Crypts: ChemopreventionR01CA131413 · NCI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI UMAR, SHAHID · 2008 to 2011
$1.2M
Diet and the Calcium Channel TRPV6 in Colon HyperplasiaR21CA131936 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI PELEG, SARA · 2009 to 2010
$373k
NCI NIH HHS CA131413NCI NIH HHS CA131936NCI NIH HHS R01 CA131413
6 · The paper itself

Abstract

Dietary calcium is believed to reduce colon cancer risk, but the mechanism by which this occurs is poorly understood. Employing the Citrobacter rodentium-induced transmissible murine colonic hyperplasia (TMCH) model, we previously showed that a high-calcium diet (hCa) significantly abrogated hyperplasia in the distal colons of NIH-Swiss mice. Here, we explored the mechanism of dietary protection by hCa by analyzing the expression of genes involved in the regulation of Ca uptake/flux in the intestinal epithelium, including the Ca-sensing receptor, vitamin D receptor, Ca binding protein, and transient receptor potential cation channels, subfamily V, members 5 and 6 (TRPV5/6). Interestingly, while TRPV6 expression increased significantly during TMCH, the expression of the other gene products was unchanged. This elevated TRPV6 expression was significantly abrogated by a hCa diet. Immunofluorescence revealed apical membrane localization of TRPV6 in the normal colon, whereas during TMCH we observed intense apical pole and cytoplasmic staining along the entire longitudinal crypt axis, including the expanded proliferating zone. The hCa diet reversed this effect. In humans, overexpression of TRPV6 was associated with early-stage colon cancer, and in colon carcinoma cells, inhibition of TRPV6 expression by small interfering RNA inhibited their proliferation and induced apoptosis. TRPV6 small interfering RNA also diminished the transcriptional activity of the calcium-dependent nuclear factors in activated T cells. Thus the aberrant overexpression of TRPV6 contributes to colonic crypt hyperplasia in mice and to colon cancer cell proliferation in humans. Therefore, it is likely that suppression of TRPV6 by a hCa diet is required for its protective effects in the colon.

Indexed as

AnimalsCalcitriolCalcium ChannelsCalcium, DietaryCell ProliferationCitrobacter rodentiumColonColonic DiseasesDietEnterobacteriaceae InfectionsGene Expression RegulationMiceTRPV Cation ChannelsCalcitriolCalcium ChannelsCalcium, DietaryTrpv6 protein, mouseTRPV Cation Channels

Identifiers

PMID20508153
PMCPMC2950683
OpenAlexW2021872682

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.