Evidence map›Paper›PMID 17484878›Full record

ArticleGastroenterology2007

The lysophosphatidic acid type 2 receptor is required for protection against radiation-induced intestinal injury.

Wenlin Deng, E Shuyu, Ryoko Tsukahara, William J Valentine, Gangadhar Durgam, Veeresa Gududuru, Louisa Balazs, Venkatraman Manickam, Marcello Arsura, Lester VanMiddlesworth and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Gastroenterology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

68 citing papers in PubMed, 118 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. LPAAmerican journal of physiology. Gastrointestinal and liver physiology · 2024
    Article
  5. Article
  6. Review
  7. E2F7 drives autotaxin/Enpp2 transcription via chromosome looping: Repression by p53 in murine but not in human carcinomas.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2023
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Fat of the Gut: Epithelial Phospholipids in Inflammatory Bowel Diseases.International journal of molecular sciences · 2021
    Review
  13. Review
  14. Review
  15. Review
  16. LPAR2 receptor activation attenuates radiation-induced disruption of apical junctional complexes and mucosal barrier dysfunction in mouse colon.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  17. Review
  18. Review
  19. Review
  20. Review

8 more citing papers are in PubMed but not listed here.

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

14 authors at 3 institutions in 1 country.

Wenlin DengDepartment of Physiology, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA.
E Shuyu
Ryoko Tsukahara
William J Valentine
Gangadhar Durgam
Veeresa Gududuru
Louisa Balazs
Venkatraman Manickam
Marcello Arsura
Lester VanMiddlesworth
Leonard R Johnson
Abby L Parrill
Duane D Miller
Gabor Tigyi
University of Tennessee Health Science Center · USRxBio (United States) · USUniversity of Memphis · US

Funding

Ligand Recognition by Phospholipid Growth Factor ReceptorsR01CA092160 · NCI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI TIGYI, GABOR J · 2001 to 2022
$5.9M
THERAPEUTICALLY PROMISING PHOSPHOLIPID GROWTH FACTORSR01HL061469 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI TIGYI, GABOR J · 1999 to 2006
$2.0M
NCI NIH HHS R01 CA092160NHLBI NIH HHS HL61469NHLBI NIH HHS R01 HL061469
6 · The paper itself

Abstract

BACKGROUND &

aimsWe recently identified lysophosphatidic acid (LPA) as a potent antiapoptotic agent for the intestinal epithelium. The objective of the present study was to evaluate the effect of octadecenyl thiophosphate (OTP), a novel rationally designed, metabolically stabilized LPA mimic, on radiation-induced apoptosis of intestinal epithelial cells in vitro and in vivo.

methodsThe receptors and signaling pathways activated by OTP were examined in IEC-6 and RH7777 cell lines and wild-type and LPA(1) and LPA(2) knockout mice exposed to different apoptotic stimuli.

resultsOTP was more efficacious than LPA in reducing gamma irradiation-, camptothecin-, or tumor necrosis factor alpha/cycloheximide-induced apoptosis and caspase-3-8, and caspase-9 activity in the IEC-6 cell line. In RH7777 cells lacking LPA receptors, OTP selectively protected LPA(2) but not LPA(1) and LPA(3) transfectants. In C57BL/6 and LPA(1) knockout mice exposed to 15 Gy gamma irradiation, orally applied OTP reduced the number of apoptotic bodies and activated caspase-3-positive cells but was ineffective in LPA(2) knockout mice. OTP, with higher efficacy than LPA, enhanced intestinal crypt survival in C57BL/6 mice but was without any effect in LPA(2) knockout mice. Intraperitoneally administered OTP reduced death caused by lethal dose (LD)(100/30) radiation by 50%.

conclusionsOur data indicate that OTP is a highly effective antiapoptotic agent that engages similar prosurvival pathways to LPA through the LPA(2) receptor subtype.

Indexed as

Administration, OralAnimalsApoptosisCell LineCells, CulturedDose-Response Relationship, DrugFemaleGamma RaysGene Expression RegulationGTP-Binding ProteinsInjections, IntraperitonealIntestinal MucosaMiceMice, Inbred C57BLMice, KnockoutMitogen-Activated Protein KinasesGTP-Binding ProteinsLtap protein, mouseMitogen-Activated Protein KinasesNerve Tissue Proteinsoctadecenyl thiophosphateOrganophosphorus CompoundsPhosphatidylinositol 3-KinasesReceptors, Lysophosphatidic AcidTumor Necrosis Factor-alpha

Identifiers

PMID17484878
PMCPMC3446791
OpenAlexW1979871496

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.