Evidence map›Paper›PMID 30270560›Full record

ArticleHLA2018

Identification of trophoblast-specific elements in the HLA-C core promoter.

Jenna K Johnson, Paul W Wright, Hongchuan Li, Stephen K Anderson

Open access · greenAbstract read
In one paragraph

Article in HLA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. HLA-C expression in extravillous trophoblasts is determined by an ELF3-NLRP2/NLRP7 regulatory axis.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  2. Article
  3. Article
  4. Review
  5. Characterization of primary models of human trophoblast.Development (Cambridge, England) · 2021
    Article
  6. Article
  7. Review
  8. Review
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.

Jenna K JohnsonCancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland.
Paul W WrightBasic Science Program, Cancer and Inflammation Program, Frederick National Lab Sponsored by the National Cancer Institute, Frederick, Maryland.
Hongchuan LiBasic Science Program, Cancer and Inflammation Program, Frederick National Lab Sponsored by the National Cancer Institute, Frederick, Maryland.ORCID 0000-0002-3501-4299
Stephen K AndersonBasic Science Program, Cancer and Inflammation Program, Frederick National Lab Sponsored by the National Cancer Institute, Frederick, Maryland.ORCID 0000-0002-7856-4266
Frederick National Laboratory for Cancer Research · US

Funding

Molecular Studies of Cellular CytotoxicityZIABC010013 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI ANDERSON, STEPHEN K · 2009 to 2025
$17.2M
MOLECULAR STUDIES OF CELLULAR CYTOTOXICITYZ01BC010013 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI ANDERSON, STEPHEN K · 1996 to 2008
$1.7M
CCR NIH HHS HHSN261200800001CIntramural NIH HHS Z01 BC010013NCI NIH HHS HHSN261200800001E
6 · The paper itself

Abstract

There are several aspects of HLA-C gene expression that distinguish it from the HLA-A and HLA-B genes. First, HLA-C is expressed by extravillous trophoblasts, whereas HLA-A and HLA-B are not. Second, its cell-surface expression is much lower, which has been linked to changes in transcription and efficiency of peptide loading and export. Third, HLA-C possesses a NK cell-specific promoter and a complex alternative splicing system that regulates expression during NK cell development. In this study, we investigate the contribution of the HLA-C core promoter to trophoblast-specific expression. Analysis of transcription start sites showed the presence of a trophoblast-associated start site and additional upstream TATA and CCAAT-box elements in the HLA-C promoter, suggesting the presence of an overlapping trophoblast-specific promoter. A comparison of in vitro promoter activity showed that the HLA-C promoter was more active in trophoblast cell lines than either the HLA-A or HLA-B promoters. Enhanced trophoblast activity was mapped to the central enhanceosome region of the promoter, and mutational analysis identified changes in the RFX-binding region that generated a trophoblast-specific enhancer.

Indexed as

Promoter Regions, GeneticRegulatory Elements, TranscriptionalCells, CulturedChoriocarcinomaFemaleHLA-A AntigensHLA-B AntigensHLA-C AntigensHumansTrophoblastsUterine NeoplasmsHLA-A AntigensHLA-B AntigensHLA-C Antigensextravillous trophoblastsHLAHLA-Cmajor histocompatibility complexMHC class Ipromotertranscription factors

Identifiers

PMID30270560
PMCPMC6251741
OpenAlexW2895697746

What OpenQuestion holds

Textmetadata
LicenceTDM
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.