Evidence map›Paper›PMID 21937108›Full record

ArticlePlacenta2011

RXRα and LXR activate two promoters in placenta- and tumor-specific expression of PLAC1.

Y Chen, A Moradin, D Schlessinger, R Nagaraja

Open access · greenAbstract read
In one paragraph

Article in Placenta, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

16 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. PLAC1: biology and potential application in cancer immunotherapy.Cancer immunology, immunotherapy : CII · 2019
    Review
  4. Article
  5. Article
  6. Placenta-Specific Protein 1 Expression in Human Papillomavirus 16/18-Positive Cervical Cancers Is Associated With Tumor Histology.International journal of gynecological cancer : official journal of the International Gynecological Cancer Society · 2017
    Article
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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

4 authors at 1 institution in 1 country.

Y ChenLaboratory of Genetics, National Institute on Aging, Bayview Research Center, 251 Bayview Blvd, RM 10B117, Baltimore, MD 21224, USA.
A Moradin
D Schlessinger
R Nagaraja
National Institutes of Health · US

Funding

Placenta specific and ribosomal RNA genes: structure and functionZIAAG000646 · NIA · NATIONAL INSTITUTE ON AGING · PI NAGARAJA, RAMAIAH · 2009 to 2025
$12.9M
Transcription Regulation of Placental /Ovary Specific GeZ01AG000646 · NIA · NATIONAL INSTITUTE ON AGING · PI NAGARAJA, RAMAIAH · 1998 to 2008
$609k
Intramural NIH HHS Z01 AG000646
6 · The paper itself

Abstract

PLAC1 expression, first characterized as restricted to developing placenta among normal tissues, is also found in a wide range of tumors and transformed cell lines. To understand the basis for its unusual expression profile, we have analyzed the gene structure and its mode of transcription. We find that the gene has a hitherto unique feature, with two promoters, P1 and P2, separated by 105 kb. P2 has been described before. Here we define P1 and show that it and P2 are activated by RXRα in conjunction with LXRα or LXRβ. In placenta, P2 is the preferred promoter, whereas various tumor cell lines tend to express predominantly either one or the other promoter. Furthermore, when each promoter is fused to a luciferase reporter gene and transfected into cancer cell lines, the promoter corresponding to the more active endogenous promoter is preferentially transcribed. Joint expression of activating nuclear receptors can partially account for the restricted expression of PLAC1 in placenta, and may be co-opted for preferential P1 or P2 PLAC1 expression in various tumor cells.

Indexed as

Promoter Regions, GeneticTranscriptional ActivationAnimalsFemaleGene Expression Regulation, NeoplasticHumansLiver X ReceptorsMiceNeoplasmsOrgan SpecificityOrphan Nuclear ReceptorsPlacentaPregnancyPregnancy ProteinsRetinoid X Receptor alphaTumor Cells, CulturedLiver X ReceptorsNR1H3 protein, humanNr1h3 protein, mouseOrphan Nuclear ReceptorsPLAC1 protein, humanPregnancy ProteinsRetinoid X Receptor alpha

Identifiers

PMID21937108
PMCPMC3210379
OpenAlexW2111799476

What OpenQuestion holds

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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.